蜗线凸片管热交换器

英国学生科学读本第88期:冷凝(2)

Thus by heating liquids we cause them to evaporate, or change into vapours or gases; 因此, 可以看出：我们能够通过加热液体使得它们蒸发, 变成水蒸气或气体； and by taking away heat from these gases, or cooling them, we tu

发表于:2018-12-18 / 阅读(37) / 评论(0)

英国学生科学读本

英闻天下——63 Environmentalists: HK Shark Fin Shops Try to Hide Their Trade

Photos shot in Hong Kong this week show more than 18-thousand shark fins drying on the roofs of industrial buildings. The fins are spread neatly in patterns under a warm sun. The images present just a fraction of the shark finning that takes place ev

发表于:2018-12-19 / 阅读(28) / 评论(0)

英闻天下

英语诗歌:For the Union Dead-Robert Lowell

Relinquunt Omnia Servare Rem Publicam. The old South Boston Aquarium stands In a Sahara of snow now. Its broken windows are boarded. The bronze weathervane cod has lost half its scales. The airy tanks are dry. Once my nose crawled like a snail on th

发表于:2019-01-02 / 阅读(61) / 评论(0)

英语诗歌

VOA标准英语2013--Shark Fin Consumption Declines in Hong Kong

Shark Fin Consumption Declines in Hong Kong Harvesting is what fishermen call the brutal act of cutting the fins off of living sharks and throwing the torso back into the ocean. Around 50 percent of all shark fins worldwide are traded through Hong Ko

发表于:2019-01-14 / 阅读(36) / 评论(0)

VOA标准英语2013年(六月)

Friendliness on the tube

BBC Learning English London Life Friendliness on the tube Yvonne:I'm Yvonne Archer and this is London Life from bbclearningenglish.com. Hello! In today's programme, we're talking about friendliness on London's tubes. Is there any? As you probably kn

发表于:2019-01-16 / 阅读(170) / 评论(0)

伦敦生活

英语听力：2013-10-27 地平线：黑洞吞噬—17

The difference is that when you have a lot of gas, a lot of stuff orbiting around the black hole, there is a little bit of friction that causes matter to slowly spiral in towards the black hole. As gas continues to spiral in towards the Event Horizon

发表于:2019-01-23 / 阅读(22) / 评论(0)

探索与发现2013年

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学英语单词

ammonium orthoarsenate

amplexiform coupling

Apollo propulsion development facility

ball-barrow

berthing

board of administration

branched hair

camphanecarboxylic acid

cane-stalk pickup

cape jessamine

carbon column