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across

across
across

牛津高阶英汉双解词典

across1

/ ??kr?s; US ??kr??s; ?ˋkr?s/ adv part

from one side to the other side 从一边到另一边; 横过: Can you swim across?

你能游过去吗? * Will you row me across? 你划船把我送过去行吗? * I helped the blind man across. 我帮助那个盲人过去了. * Come across to my office this afternoon. 你今天下午到我办公室来一趟.

on the other side 在另一边: We leave Dover at ten and we should be across in

France by midnight. 我们十点钟离开多佛, 午夜时应能抵达法国那边.

from side to side 从这边到那边之间; 宽: The river is half a mile across, ie wide.

这条河有半英里宽.

# across from prep (esp US) opposite (sth) 在...的对面: Just across from our house there's a school. 就在我们房子的对面有一所学校.

across2

/ ??kr?s; US ??kr??s; ?ˋkr?s/ prep

from one side to the other side of (sth) 从(某物)的一边到另一边; 横过(某物):

walk across the street 走过这条街* row sb across a lake划船送某人过湖.

on the other side of (sth) 在(某物)的另一边: We shall soon be across the

Channel. 我们不久即将渡过英吉利海峡了. * He shouted to me from across the room. 他从房间的另一边向我喊. * My house is just across the street. 我的房子就在马路对面.

extending from one side to the other side of (sth) 从(某物)的一边向另一边伸

展: a bridge across the river 横跨河上的一座桥* Draw a line across the page. 在这页上画一条横线.

so as to cross or intersect (sth) 交叉; 与(某物)相交叉: He sat with his arms

across his chest. 他两臂在胸前交叉坐着.

朗文当代英语词典

across

a·cross

W1S1 /??kr?s US ??kr??s/adv, prep

[Date: 1200-1300; Language: Anglo-French;Origin: an crois 'in cross']

from one side of something to the other

the first flight across the Atlantic

They ran straight across the road (=without stopping) .

There isn't a bridge. We'll have to swim across.

We'd got halfway across before Philip realized he'd left his money at home.

We gazed across the valley.

towards someone or something on the other side of an area

There's Brendan. Why don't you go across and say hello?

across to/at

The referee looked across at his linesman before awarding the penalty.

He walked across to where I was sitting.

used to say that something exists or reaches from one side of an area to the other

a deep crack across the ceiling

the only bridge across the river

Do you think this shirt is too tight across the shoulders?

Someone's parked right across the entrance to the driveway.

on the opposite side of something

My best friend lives across the road.

He knew that just across the border lay freedom.

across (sth) from sb/sth

Across the street from where we're standing, you can see the old churchyard.

the woman sitting across from me (=opposite me) on the train

in every part of a country, organization etc

a TV series that became popular across five continents

Teachers are expected to teach a range of subjects right across the curriculum.

used to show how wide something is

10 feet/five metres etc across

At its widest point the river is 2 km across.

牛津高阶英语词典

across

adverb, preposition

adverb

Help Note: For the special uses of across in phrasal verbs, look at the entries for the verbs. For example come across is in the phrasal verb section at come. from one side to the other side: It's too wide. We can't swim across. ◆The yard measures about 50 feet across.

in a particular direction towards or at sb/sth: When my name was called, he looked across at me.

(across from) opposite: There's a school just across from our house.

(of an answer in a CROSSWORD) written from side to side: I can't do 3 across. preposition

from one side to the other side of sth: He walked across the field. ◆I drew a line across the page. ◆A grin spread across her face. ◆Where's the nearest bridge across the river?

on the other side of sth: There's a bank right across the street.

on or over a part of the body: He hit him across the face. ◆It's too tight

across the back.

in every part of a place, group of people, etc.

Synonym: THROUGHOUT

Her family is scattered across the country. ◆This view is common across all sections of the community.

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PDI产品使用常见问题解答——PIT篇

PDI产品使用常见问题解答——PIT篇 PIT检测仪时间设置无法保存,什么原因? PIT的时间是由主板上一个专门的电池负责供电的,电池寿命一般3-5年,当发现设备时间设置无法保存时,往往是这个电池没电了,您可联系相关区域的售后服务人员,更换电池即可解决,更换电池是收费的,具体收费需咨询我公司售后工程师。 PIT双通道采集仪的几种模式分别是什么意思?如何选用? 目前,EPC在国内销售的PIT检测仪均为双通道,可进行常规单通道检测,也可进行瞬态阻抗法检测及双速度检测。检测时,共有四种模式可供选择,分别是:ACC、VEL、F+V 和V+V。ACC表示加速度模式,我们使用的传感器其实加速度传感器,ACC模式采集的就是原始的加速度信号,但通常我们不采用这种模式,因为不符合我们的分析习惯,如果不小心选了这个模式也没关系,后期在电脑软件中可以转换为速度信号分析;VEL表示速度模式,就是讲采集的加速度信号积分为速度信号显示,是我们最常用的模式;F+V 模式是瞬态阻抗法测试,需要用到内置传感器的力锤进行测试,对分析桩身浅部缺陷很有帮助;V+V模式为双速度模式,需用到两个侧置加速度传感器,主要用于测试既有基础下桩身完整性及确定桩长等。 PIT采集信号时,采样频率如何选择? PIT-VV的采样频率为50kHz、100kHz、150kHz;PIT-XA及PIT-Q的采样频率范围为32~128kHz。 正常情况下,PIT-VV的采样频率我们选择50kHz,PIT-XA和PIT-Q的采样频率我们选择64kHz,即可满足要求。采样频率的不同,影响的是相邻采样点之间的距离,频率越高,相邻采样点之间的间隔就越小,信号精度就相应越高。但由于PIT的采样点数是固定的(1K),所以采样频率的改变,势必会影响到信号所能覆盖的桩长范围,频率越高,覆盖的桩长越短。因此,一般只有我们需要查看桩身浅部缺陷的时候,才会设置较高的采样频率,不过即使这样,精度的提高其实也是有限的。

介词by用法归纳-九年级

页脚.

. . 教学过程 一、课堂导入 本堂知识是初中最常见的介词by的一个整理与总结,让学生对这个词的用法有一个系统的认识。页脚.

. . 二、复习预习 复习上一单元的知识点之后,以达到复习的效果。然后给学生一些相关的单选或其他类型题目,再老师没有讲解的情况下,让学生独立思考,给出答案与解释,促进学生发现问题,同时老师也能发现学生的盲点,并能有针对性地进行后面的讲课。 页脚.

. . 三、知识讲解 知识点1: by + v.-ing结构是一个重点,该结构意思是“通过……,以……的方式”,后面常接v.-ing形式,表示“通过某种方式得到某种结果”,即表示行为的方式或手段。 I practice speaking English by joining an English-language club. 我通过加入一个英语语言俱乐部来练习讲英语。 Mr Li makes a living by driving taxis.先生靠开出租车为生。 页脚.

. . 页脚. 介词by + v.-ing 结构常用来回答How do you...?或How can I...?之类的问题。 —How do you learn English? 你怎样学习英语呢? —I learn English by reading aloud. 我通过大声朗读来学英语。 —How can I turn on the computer? 我怎样才能打开电脑呢? —By pressing this button. 按这个按钮。 知识点2:by 是个常用介词,其他用法还有: 1【考查点】表示位置,意思是“在……旁边”,“靠近……”,有时可与beside互换。 The girls are playing by (beside) the lake. 女孩们正在湖边玩。 此时要注意它与介词near有所不同,即by 表示的距离更“近”。比较: He lives by the sea. 他住在海滨。 He lives near the sea. 他住在离海不远处。

across的用法与易错说明

across的用法与易错说明 1. 用作介词或副词,注意以下用法: (1) 表示动态意义,意为“横过”、“到……的另一边”。如: I cam swim across the river in 10 minutes. 我可以在十分钟之内游过河去。(介词用法) Can you swim across? 你能游过去吗? (副词用法) (2) 表示静态意义,意为“在……的另一边”。如: My house is just across the street. 我家就在街道对面。(介词用法) We leave Dover at ten and we should be across in France by midnight. 我们十点钟离开多佛,午夜时应能抵达法国那边。(副词用法) 有可与介词from 连用,表示“从……的另一边”。如: He shouted to me from across the room. 他从房间的另一边向我喊。 (3) 表示“交叉”(介词用法) 或“从一边到另一边的宽度”(副词用法)。如:

He sat there with his arms across his chest. 他坐在那儿,两臂交叉放在胸前。(介词用法) The river is half a mile across. 这条河半英里宽。(副词用法) 2. 不要将across 误用作动词。如: 不能说:The river is too deep and we can’t across. 可改为:The river is too deep and we can’t cross. 河水太深,我们过不了。 3. 用于come [run] across, 意为“偶然遇见”、“意外发现”(不用于被动式)。如:Where did you come [run] across her? 你在那儿碰到她的? I’ve just come across a beautiful poem in this book. 我在这本书里偶然发现一首优美的诗。

快速英语学习法(7):“吃”的英文用法大全

快速英语学习法(7):“吃”的英文用法大全 小伙伴们都纷纷封自己为中国最合格的“小吃货”,当然,要把中国文化发扬光大,就要做最合格的国际吃货。 那么,一看到“吃”,你想到的第一个单词除了eat之外,还有别的?其实,这是应该根据不同的情景和意义给予恰当的表达。常见的表达法如下: 1.译作take或have。 The patient can't take food yet.病人还不能吃饭。 We are having dinner now.我们现在正在吃晚饭。 2.译作dine,feed,taste,touch,graze等词。 She invites me to dine with her tomorrow. 她邀请我明天和她一起吃饭。 Have you fed yet?你吃饭了吗? He hasn't touched /tasted food for two days.他两天没吃东西了。 The horses were grazing quietly in the field. 马群正在田野里静静地吃草。 3.译作like,love,prefer,enjoy,care for,be fond of等。 Would you like `ice-cream`?你想吃冰淇淋吗? She loves bananas.她爱吃香蕉。 Southerners prefer rice while northerners prefer noodles. 南方人喜欢吃米饭而北方人喜欢吃面条。 He is enjoying his dinner.他正津津有味地吃晚饭。 Tom doesn't care for meat.汤姆不怎么喜欢吃肉。 Ants are fond of sweet food.蚂蚁喜欢吃甜食。

by与through的区别

By 与through 的区别 1.by (1)表示方法,手段。即“用...,通过...以…方式 ”相当于by means of 如: All work had to be done by hand 所有的工作都是手工进行的。 He makes a living by teaching 他以教书为生。 It happened through no fault of mine.这件事的发生, 并非由于我的任何过错。 He saluted her by raising his hat.他举起帽子向她致意。 She earned money by writing.她靠写作挣钱。 根据;按照to play by the rules按规则比赛 相差His horse won by a nose.他的马以一鼻之差取胜。 (2)表示传达、传递的方式或煤介。如: How did you send the letter, by airmail or by ordinary mail? 你是怎么发送的这信,是通过航天邮件还是普通邮件? (3)表示用交通工具、通讯工具后接名词单数,不加冠词。如: He came by train, but his wife came by bus. 他是乘火车来的,可是他老婆是坐公共汽车来的。 注意下面两句的区别: Did you come by train =Did you come in his car / on my bike? “by +抽象名词”构成的词组有: by accident / by chance / by diligence / by effort / by force / by heart / by luck / by mistake / by hard work. (4)指数量增加或减少到的程度,相差。 We lost the match by one goal 我们仅以一球之差输了比赛。 (5)根据,按照 pay sb by the hour /day/week Sell sth by the pound /meter/ dozen sell sth by weight/length As a rule,domestic servants doing odd jobs are paid by the hour 通常,家政服务是按照小时计酬的。 They marched by night.他们夜里进军。 2. through (1)表示“以;通过;经由”。如:

on,acrossfrom,nextto或between…and练习和辨析

用on, across from, next to或between…and 完成下列句子。 1. 学校在书店的对面。 The school is ____ the bookshop. 2. 我坐在他旁边。 I sit ____ him. 3. 我们把这个书桌放在床和椅子之间。 Let’s put the desk ____ the bed ____ the chair. 4. 墙上有一些画。 There are some pictures ____ the wall. [Key: 1.across from 2.next to 3.between;and 4.on] 【辨析】这几个词语均用来表示位置,但用法有别。 ⑴on 作介词,常用于表示方位和地点,侧重指紧贴着某物,意为“在……上面”。 例如: 在教师的讲桌上有一些花。 There are some flowers on the teacher’s desk. There is a map of China on the wall. 墙上有一张中国地图。 注意:在美式英语中,表示“在街上”用介词on,但在英式英语中,则常用 介词in。例如: The Greens live on(in) Wall Street. 格林一家住在华尔街上。 Their house is on(in) that street. 他们家就在那条街上。 ⑵across from 相当于介词,在美式英语中表示“在……的对面;在……的对侧”, 表示此含义时,在英式英语中也可以只用across。例如: The pay phone is across from the library. 公用电话就在图书馆的对面。 Can you see the shop across from the river? 你能看到河对岸的商店吗? ⑶next to 相当于介词,意为“紧挨着,紧靠着”。例如: There is an airport next to the park. 有个机场紧挨着那个公园。 The pay phone is next to the post office. Go along and turn left, you’ll see it. 公用电话紧挨着邮局。你向前走,往左拐就能看到它。 ⑷between…and 意思是“在……和……之间”,用于表示两者间。between是介 词,后接人称代词时,该人称代词必须用宾格形式。例如: The library is between the hotel and the supermarket. 图书馆在旅馆和超市之 间。 You sit between him and me. 你坐在我和他之间。 注意:between 后面也可以接代表两者的复数名词或代词。例如: The video arcade is between two shops. 电子游戏中心在两个商店之间。 They are twins. I can’t tell the difference between them. 他们是双胞胎,我看不出他们之间的区别。

Population用法

Population用法 population是一个集合名词(无复数形式),它的用法有时较为特殊,所以很容易用错。 下面谈一下它的用法: 一、population常与定冠词the连用,作主语用时,谓语动词常用第三人称单数形式。 例如: The world\'s population is increasing faster and faster. 全世界的人口增长得越来越快。 At the beginning of the twentieth century, the world\'s population was about 1,700 million. 在二十世纪初,全世界的人口大约是十七亿。 二、当主语是表示\"人口的百分之几、几分之几\"时,谓语动词用复数形式。 例如: About seventy percent of the population in China are farmers. 中国大约有百分之七十的人口是农民。 三、有时population可用作可数名词,其前可用不定冠词。 例如: China has a population of about 1.3 billion. (=There is a population of about 1.3 billion in China.) 中国大约有十三亿人口。 New York is a big city with a population of over 10 million. 纽约是一个有一千多万人口的大城市。 在表示多个地区的人口时,population要用复数形式populations。 例如: Many parts of the world, which once had large populations and produced plenty of crops, have become deserts. 世界上很多地区一度人口众多,种植大量的农作物;现在,这些地区已经变成了沙漠。 四、表示人口的\"多\"或\"少\",不用\"much\"或\"little\",而要用\"large\"或\"small\"。 例如: India has a large population. 印度人口众多。 Singapore has a small population. 新加坡人口少。 五、询问某国、某地有多少人口时,不用\"How much...?\",而用\"How large...?\";在问具体人口时用\"What...?\" 例如: -How large is the population of your hometown? 你们家乡有多少人口? -The population of our hometown is nearly twice as large as that of yours. 我们家乡的人口是你们家乡人口的将近两倍。 -What is the population of Canada? 加拿大的人口有多少? -The population of Canada is about 29 million. 加拿大的人口大约有二千九百万。 六、population还表示\"某地、某类的动、植物或物品的总数\"。 例如: In India, however, the population of tigers has increased, from 2,000 in 1972 to about 5,000 in 1989. 然而在印度,老虎的总数已从1972年的2,000只增长到了1989年的大约5,000只。

blade特殊用法

错误!不能读取或显示文件。特殊用法adjustable blade 可调整叶片 可调整刀片 变距桨叶, 活距桨叶 air cooled cascade blade 气冷叶栅桨 airscrew blade 螺旋桨叶 anchor blade 锚爪 articulated blade 【航空】铰接桨叶 back saw blade 锯条 backward curve blade 后曲叶片 beater blade 轮叶, 逐稿轮叶片, 击轮叶片 bent blade 弯刀, 弯形旋耕刀 blower blade 吹送机轮叶片, 鼓风机轮叶片 calling-on signal blade 引导信号臂板 cambered blade 曲面桨叶, 弯曲叶片 carbide blade (无心磨床的)硬质合金刀片, 硬质合金托板 cascade blade 叶栅的叶片 cast blade 铸造叶片 central blade

(多叶舵的)中间舵叶 centrifuge blade 离心叶片; 离心刀片 ceramic rotor blade 陶瓷动叶片 circular shear blade (圆剪床的)圆形刀片completeblade 整叶片 compressorblade 压缩机叶片 conduction-cooled turbine blade (导热)冷却式涡轮叶片 constant reaction blades 等反应度叶片 constant speed chopper blade 恒速调制盘叶片 counter blade 对刃 covering blade 覆土铲 Cuban blade 无柄刀(生产雪茄烟用) cutter blade (铣)刀片 切割器动刀片 Damascus blade 大马士革钢刀 detachable blade 可折桨叶 可换刀片[刀刃] diamond-impregnated blade 金刚砂刀片 die blade

across的短语

across的短语 across表示穿过; 横穿,横过; 与…交叉; 在…对面的意思,那么你知道across的短语有哪些吗?接下来为大家整理了across相关短语,希望对你有帮助哦! across的短语: 动词+~ come across 穿越,偶然发现〔遇见〕 come across one's mind 忽然想起 cut across 抄近路穿过,从…之前横空而过,不顾,无视,与…相抵触 drop across 〈非正〉偶然遇到〔发现〕 fall across 偶然遇到,无意中碰见;倒下 get across (使)越过,渡过;〈主英;口〉使恼火,使生气 put across 把…横置于…上;把…送到…对面;〈非正〉用欺骗的方法使…接受或相信… put it across 欺骗,跟…算账,向…报复put one across (用欺骗手段)使信以为真,使接受 put sb across (用欺骗手段)使信以为真,使某人接受 run across 跑着越过,穿越;流过;〈主英〉开车送…穿过…;偶然碰见〔发现〕

stumble across 偶尔或侥幸发现(某物) 同义词辨析: across, along, over, through 这些前置词均有"横过,穿过"之意。 across :指"从……的一边到另一边",强调横过,多与动态动词连用。 along :指沿着一条直线在水平方向上运动。一般表动态,有时也与静态动词连用。 over :常和动态动词连用,指"从……上面越过"或"横越";表静态时,指"在彼处"。 through :侧重从一端穿到另一端。 across的短语例句: 1. They stumble across a ghost town inhabited by a rascally gold prospector. 他们偶然来到一个居住着一位狡诈的淘金者的废墟之城。 2. She knelt and brushed her lips softly across Michael's cheek. 她跪了下来,轻吻迈克尔的脸颊。 3. Lucy had strung a banner across the wall saying "Welcome Home Daddy". 露西在墙上挂了一条横幅,上面写着“欢迎爸爸回家”。

population 的用法

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