开循环蒸汽压缩热泵

海事英语600句 13

Part 13 Ballast handling 1. Scuppers plugged. 2. Open sea suction valve and report. 3. Sea suction valve closed. 4. Ballast pump stopped.

发表于:2018-12-05 / 阅读(164) / 评论(0)

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Earth and Sky:Aqua Spacecraft 水资源监测太空船

Aqua Spacecraft 水资源监测太空船 NASA's latest and most ambitious weather satellite is measuring Earth's water cycle. Learn more about the Aqua satellite -- today on Earth and Sky. DB: I'm Deborah Byrd. JB: And I'm Joel Block for Earth and Sky. This

发表于:2018-12-07 / 阅读(134) / 评论(0)

(科普英语)Earth and Sky

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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(213) / 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(150) / 评论(0)

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常春藤解析英语【51】The Earth's Biggest Threat地球危

The Earth's Biggest Threat 地球危机──温室效应 by Levi King Global warming was once considered unlikely to be real. Recently, though, it has become widely accepted as fact. Scientists have calculated that the earth's atmosphere has gotten

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常春藤解析英语

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It's too hot here. This room is like an ice box. I'm freezing. Turn on the air conditioner. There's no heat in here. Turn on the heat. Open a window.

发表于:2018-12-25 / 阅读(89) / 评论(0)

英语口语900句

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(143) / 评论(0)

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NPR边听边练318：纽约禁止电子烟

以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。一、泛听建议： 1、完整听一遍，掌握大意。 2、继续听，特

发表于:2018-12-26 / 阅读(94) / 评论(0)

NPR边听边练

60秒科学:Do Rainforests Create Rain?

Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience

发表于:2019-01-02 / 阅读(179) / 评论(0)

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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(196) / 评论(0)

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今天我们要学的词是heat wave。 Heat wave, 热浪，高温天气。 A heat wave is sweeping the Northeastern region of the United States, 美国东北部地区普遍出现高温天气。 The heat wave could be a record-breaker, 这次高温天气

发表于:2019-01-07 / 阅读(158) / 评论(0)

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每日一词【1023】heat wave：热浪，高温天气

发表于:2019-01-07 / 阅读(160) / 评论(0)

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Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(136) / 评论(0)

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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(150) / 评论(0)

VOA标准英语2010年(七)月

英语听力：自然百科神奇水世界 Water-11

It's just magic. When you follow it, you can see that this is the perfect union of the tree and the villages. The locals have kind of trained the roots, kind of guided them through and netted them together. What they've done here is they've grabbed s

发表于:2019-01-22 / 阅读(125) / 评论(0)

自然百科2010年

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今天要学的一个词是：pump。pump，Pump一般是指泵，或抽水机。可是今天讲的pump是指汽车加油站的泵。英国石油公司宣布停止在阿拉斯加的石油开采，《洛杉矶时报》的标题说：Oilfield Closure t

发表于:2019-02-02 / 阅读(173) / 评论(0)

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舞曲狂欢:Loona - If You Want My Love

歌曲： If You Want My Love 艺人： Loona 音乐星级： ★★★★★ 所属专辑： Colors 发行年代： 2002 风格： Pop Dance 相关介绍： Loona,。1974年9月16日出生于荷兰。作为歌手舞者的Loona成名与DJ Sammy是分不开的。此人也正是后来成为了她的丈夫。05年他们有

发表于:2019-02-11 / 阅读(161) / 评论(0)

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听播客学英语 107 如何保持温暖

If you visit upland areas of Britain places like the mountains of Scotland, or Wales, or the Pennine Hills in northern England you will see a lot of sheep. Many of the sheep are in places where there are no walls or hedges to keep them in their field

发表于:2019-02-19 / 阅读(142) / 评论(0)

听播客学英语

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Why does blowing on hot soup help to cool it off? Its because of evaporation. Evaporation cools down a liquid because the most energetic molecules leap off the surface and leave the slower-moving molecules behind. Slower-moving means lower temperatur

发表于:2019-03-06 / 阅读(163) / 评论(0)

英语时差8，16

英语听力文摘 English Digest 267、火是什么？

What Is Fire? 火是物质燃烧过程中散发出光和热的现象，是能量释放的一种方式。火焰分为焰心、中焰和外焰，温度由内向外依次增高。燃烧过程必须有可燃物、燃点温度、氧化剂三项并存，缺一

发表于:2019-03-09 / 阅读(298) / 评论(0)

英语听力文摘 English Digest

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