un. 车床顶尖孔

Supermassive Black Holes 超大质量黑洞 - 9

Four times a year, Ghez focuses the telescope on the stars of the very heart of our Milky Way. She is looking for the telltale high speeds that reveal the presence of a black hole. The center of the M

发表于:2018-12-07 / 阅读(377) / 评论(0)

超大质量黑洞

机械类词汇大全-14

547 、材料 material 548 、材料单；材料表 materiallist 549 、杜拉铝 duralumin 550 、杉木 spruce 551 、步进电动机 steppermotor 552 、步冲轮廓法 nibbling 553 、每分钟

发表于:2019-01-03 / 阅读(100) / 评论(0)

英文名句短语

机械类词汇大全-6

211 、木工工作台 woodworker'sbench 212 、木工车床 woodturninglathe;woodworkinglathe 213 、木工铅笔 carpenter'spencil 214 、木工刨床 thicknessingandplanningmachine 215 、木牙

发表于:2019-01-03 / 阅读(103) / 评论(0)

英文名句短语

俄罗斯文化介绍：套娃传承百年的艺术品

Hand-made souvenirs are among the most sought after items among tourists who travel to Russia. One such sovenir is a famous symbol of Russia itself - the nesting doll, also known as matryoshka. Many may be familar with its iconic image but few know t

发表于:2019-01-05 / 阅读(103) / 评论(0)

英语新闻视频

否定句式翻译的常见错误

英语和汉语在否定的表达形式上存在着许多差异，我国学生往往会以中国人的思维方式和习惯用法去套英语，这样在汉译英时难免会出现一些错误。部分常见的错误举例如下： 1、未经允许，任

发表于:2019-01-09 / 阅读(106) / 评论(0)

英语笔译

高考英语作文高分必备实践篇 039

How to repart a plaint When the plant grows too large for its original part. It needs to be reparted. This can be done quickly and easily if you follow this instructions. First, you should cut off the bottom of the part with small stones. Then put tw

发表于:2019-01-10 / 阅读(301) / 评论(0)

高考英语作文高分必备

VOA慢速英语 2007 0411b

VOICE ONE: Im Steve Ember. VOICE TWO: And Im Shirley Griffith with EXPLORATIONS in VOA Special English. At a store called Phil Brown at work turning a bowl on his lathe Sansar Gallery in Bethesda, Maryland, you might see work by the wood turner Phil

发表于:2019-01-11 / 阅读(133) / 评论(0)

VOA慢速英语2007年（四）月

VOA慢速英语2011-Washington Exhibit Celebrates the Art of

I'm Doug Johnson. This week we play music by Nora Jane Struthers And answer a question about Facebook But first we look at an exhibit in Washington that celebrates the art of wood turning and carving. (MUSIC) Revolution in Wood DOUG JOHNSON: An exhib

发表于:2019-01-11 / 阅读(139) / 评论(0)

2011年VOA慢速英语(一)月

托福词汇练习二

托福考试比起国内诸多英语类考试，对考生的词汇量考察更加严格，一般来说，托福考试需要考生的词汇量在10000左右。下面，小编整理了一些单词供各位考生练习。 forage 1 n 草料;饲料 2 v 觅食

发表于:2019-01-17 / 阅读(112) / 评论(0)

托福英语

乔布斯传第16期:上学(4)

It would have been fun if he had gotten to teach me how to use a mill and lathe. But unfortunately I never went, because I was more interested in electronics. 要是他能教我用铣和车床的话，一定会很有意思的，但遗憾的是，我从

发表于:2019-01-22 / 阅读(111) / 评论(0)

乔布斯传

英语听力：2013-10-11 地平线：黑洞吞噬—10

It's like trying to pick out an individual inside the middle of a busy city, with lights and cars, and things happening all around them. But that wasn't the only problem. Vast, swirling clouds of dust and gas prevent visible light from the centre of

发表于:2019-01-23 / 阅读(83) / 评论(0)

探索与发现2013年

英语听力：2013-10-09 地平线：黑洞吞噬—9

At last, astronomers had a map of our galaxy. A panorama of the Milky Way, it would never be possible to see from Planet Earth. 27,000 light-years from our solar system is the centre of our galaxy. If we were ever going to have a chance of seeing a b

发表于:2019-01-23 / 阅读(81) / 评论(0)

探索与发现2013年

英语听力：2013-11-13 地平线：黑洞吞噬—24

The X-ray image revealed how the black hole at the heart of the galaxy was firing unimaginable amounts of radiation into surrounding space and with extraordinary consequences. We could see what was going on at the centre and we could start to underst

发表于:2019-01-23 / 阅读(97) / 评论(0)

探索与发现2013年

英语听力：2013-11-08 地平线：黑洞吞噬—22

Was there any connection between the two? What Magorian discovered was completed unexpected. The relationship that we find was essentially that the bigger the galaxy, the bigger the black hole. That's in its broad terms. If you want to be a bit more

发表于:2019-01-23 / 阅读(94) / 评论(0)

探索与发现2013年

英语听力：2013-10-20 地平线：黑洞吞噬—14

Instead, it seems to be a gas cloud moving at huge speeds right in the direction of the black hole. But what really rang along bells was the way it had changed shape. We see that this gas cloud as it moves closer and closer to the black hole, is gett

发表于:2019-01-23 / 阅读(89) / 评论(0)

探索与发现2013年

否定句式汉译英时常见的错误及分析

英语和汉语在否定的表达形式上存在着许多差异，我国学生往往会以中国人的思维方式和习惯用法去套英语，这样在汉译英时难免会出现一些错误。部分常见的错误举例如下： 1、未经允许，

发表于:2019-02-03 / 阅读(95) / 评论(0)

英语口译

否定句式常见错误及分析

发表于:2019-02-07 / 阅读(105) / 评论(0)

实用英语

月亮和六便士第四十二章(1)

Chapter 42 第四十二章 I did not know why Strickland had suddenly offered to show them to me. I welcomed the opportunity. 我不知道为什么思特里克兰德突然主动提出来要让我看他的画，但是对这样一个机会我是非常欢

发表于:2019-02-13 / 阅读(91) / 评论(0)

月亮和六便士

机械专业英语词汇

后角 clearance angle 龙门刨削 planing 主轴 spindle 主轴箱 headstock 卡盘 chuck 加工中心 machining center 车刀 lathe tool 车床 lathe 钻削镗削 bore 车削 turning 磨床 grinder 基准 benchmark 钳工 locksmith 锻 forge 压模

发表于:2019-02-18 / 阅读(154) / 评论(0)

实用英语

经济学人419:英国作家艾伦·西利托

Business 商业。 Yahoo 雅虎。 Googling a new boss 从谷歌来的新总裁。 Marissa Mayer takes on one of the toughest jobs in tech 玛丽莎梅耶尔接任技术界一份最艰巨的工作。 SHORTLY after news broke on July 16th of her appoi

发表于:2019-02-19 / 阅读(165) / 评论(0)

经济学人综合

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2-hydroxy-5-methylbenz-aldehyde

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approval by the procuratorate

areolate mildew