压缩制冷

用Mp3背六级单词045

maintenance inflict identification unemployment intensify decay idiom outbreak idleness beam overwhelming shipwreck graphite thrifty preset misfortune untie compression immortal weary roam transplant impartial vocal

发表于:2018-12-01 / 阅读(256) / 评论(0)

用Mp3背六级单词

60秒科学:新CPR,免去人工呼吸的尴尬

New data show that when bystanders without emergency medical training try CPR using only chest compression, the results can be better than if they also attempt mouth-to-mouth. Christopher Intagliata reports 看见身边有人突然倒了，想救人家

发表于:2018-12-07 / 阅读(232) / 评论(0)

60秒科学

机械类词汇大全-45

1849 、静摩擦 staticfriction 1850 、颈轴承 journalbearing 1851 、颈缩 necking 1852 、频带宽度 bandwidth 1853 、频率 frequency 1854 、头座 headstock 1855 、阈值；临界值

发表于:2018-12-08 / 阅读(169) / 评论(0)

英文名句短语

商务口语第67讲:制造工程(2)

1.Computer-Aided Manufacturing(CAM) 计算机辅助制造 A: Is CAM used in China? B: Yes，it has been uesd in China for almost twenty years. A：在中国有使用CAM的吗？ B：有啊，在中国使用已经将近20年了。 2.Hot working 热加工 A: What are the hot working proc

发表于:2018-12-26 / 阅读(161) / 评论(0)

天天商务口语

【一起听英语】人口大爆炸

人口数量增长速度过快。给我们的生存环境带来哪些影响？ Alice: Hello, I'm Alice Finn: And I'm Finn. Alice: And this is 6 Minute English! This week were talking about population growth and the effects it might have on the world.

发表于:2018-12-27 / 阅读(148) / 评论(0)

一起听英语

电信专业英英词典D-4

D type Channel Bank A D type channel bank is channel termination equipment used for combining (multiplexing) individual analog channel signals on a time division basis. D type channel banks provide in

发表于:2019-01-03 / 阅读(220) / 评论(0)

电信英语

Population explosion

Alice: Hello, I'm AliceFinn: And I'm Finn.Alice: And this is 6 Minute English! This week were talking about populationgrowth and the effects it might have on the world. At the moment itsestimated that there are about 7 billion people on the planet. F

发表于:2019-01-07 / 阅读(170) / 评论(0)

六分钟英语

VOA标准英语2010年-CPR Works Without Mouth-to-Mouth

Study finds chest compressions are the real life-saver Art Chimes | St. Louis, Missouri 29 July 2010 Cardiopulmonary resuscitation, or CPR, has been around in its modern form for about 50 years. Its rhythms of chest compressions and mouth-to-mouth br

发表于:2019-01-13 / 阅读(167) / 评论(0)

VOA标准英语2010年(七)月

囧研究全球变暖都怪速冻饺子

a very interesting read about the rapid expansion of refrigeration in China: 关于中国制冷业的快速发展，有一个有趣的事实： It is not simply transforming how Chinese people grow, distribute and consume food. It also stands to beco

发表于:2019-01-21 / 阅读(208) / 评论(0)

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学英语单词

absorber rod worth

akosua

al-Masry

almost constant sequence

amniochorial

applicaton for leave to appeal

aquilegia flabellata s. et z.

aretalogies

aromatic vegetable

automatic Sprengel pump

autorotative