单线控制井下安全阀

高中英语河北版下Unit Three

[00:-1.00]Playing,living and working safely is never a waste of time. [00:-2.00]Always think things through and ask yourself if you are acting in a safe manner. [00:-3.00]If not,take the time to make it safe.You won't be sorry, [00:-4.00]and many pre

发表于:2018-12-13 / 阅读(160) / 评论(0)

高中英语河北版下

【英文导学】工厂视察

Short Conversation 准备参观工厂 A:Our group has been looking forward to visiting your plant. B:We thank you for coming all the way here. A:Are there any safety issues we should know about？ B:Yes，please put on these hard hats and safety glas

发表于:2018-12-27 / 阅读(32) / 评论(0)

英文导学

英语听力文摘 English Digest 521、锚应该抛多远？

Anchors Away, Me Boysbut How Far? Anchors away, me boys but how far? On this moment of science.What happens if you throw your anchor overboard and there isnt enough chain to reach the bottom? Does the anchor haul you down with it? This sounds a littl

发表于:2018-12-31 / 阅读(100) / 评论(0)

英语听力文摘 English Digest

2007年VOA标准英语-Questions Raised Over Airline Safety in Indones

By Chad Bouchard Jakarta 06 January 2007 Critics raising concerns about Indonesia's disaster response system and the safety of the country's rapidly growing budget airline industry following the disappearance of a Boeing 737 on New Year's Day. Chad

发表于:2019-01-19 / 阅读(71) / 评论(0)

2007年VOA标准英语（一月）

英国学生科学读本第35期:蒸汽往上冒(2)

There would soon be an explosion; the kettle would be burst open. It is in this way that boiler explosions are often caused. When there is too much steam in a boiler, and it cannot get out, it presses against the sides of the boiler, until at last th

发表于:2019-02-07 / 阅读(81) / 评论(0)

英国学生科学读本

【英语时差8,16】船锚与弱扣环-下

The navy has prepared for this by building what is called a weak link into their anchor chains. The weak link is the last link in the chain, and while its strong enough to hold together in general, its weak enough to break if the whole weight of the

发表于:2019-02-23 / 阅读(43) / 评论(0)

英语时差8，16

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学英语单词

A lot of water has flown under the bridge since.

accede to sth

acro-cephalosyndactyly