电热锅炉

Earth and Sky:Electric Fish 发电鱼

Electric Fish 发电鱼 One way that Harold Zakon and his team find fish to study is to put electrical detectors into the bottom of murky streams in Venezuela. This works because certain fish emit pulses of electricity. Discover electric fish -- on tod

发表于:2018-12-07 / 阅读(47) / 评论(0)

(科普英语)Earth and Sky

辛沛沛NO-BOOK 辛沛沛口语提高版上册B Lesson 23 Let

Lesson 23 Let 1.Don't let me down again. 2.Just let it be. 3.Never let on the secret. 4.Let me explain! 5.Let me think a while. 6.Let's find a place to let off steam. 7.Let bygones be bygones. 8.I'm sorry.I let the cat out of the bag.

发表于:2019-01-14 / 阅读(58) / 评论(0)

辛沛沛NO-BOOK 辛沛沛口语提高版

辛沛沛NO-BOOK 辛沛沛口语提高版下册A Lesson 17 Under

Lesson 17 Under 1.I finished it just under the wire. 2.I'm feeling a little under the weather. 3.She drank us under the table. 4.He always takes us under his wing. 5.Your glasses are just under your nose. 6.There's nothing new under the sun. 7.The fi

发表于:2019-01-14 / 阅读(74) / 评论(0)

辛沛沛NO-BOOK 辛沛沛口语提高版

Electric motor made in single molecule

BEIJING, Sept. 6 (Xinhuanet) -- Scientists from Tufts University of the U.S. have created the world's smallest electrical motor in a single molecule. The finding was published in the journal Nature Nanotechnology on Monday. In the research, scientist

发表于:2019-01-30 / 阅读(72) / 评论(0)

英语新闻

选择一个节能的供暖系统

The more you know about the various heating systems that are available on the market today, the better able you will be to choose the best one for your home. Obviously, your main goal (besides being comfortable), is to have a heating and air conditio

发表于:2019-02-04 / 阅读(86) / 评论(0)

实用英语

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)

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body-centred tetragonal lattice

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