磷的固定

英国学生科学读本第92期:一盒火柴(2)

The little splints of wood which we call matches are made out of deal or pine wood which has been soaked in melted paraffin wax to make it burn more easily. 这种被我们称之为火柴的薄木片由欧洲赤松（松树）制成, 在液体的石蜡

发表于:2018-12-18 / 阅读(38) / 评论(0)

英国学生科学读本

SSS 2010-12-02

This is Scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? Life on earth requires six basic ingredientscarbon, hydrogen, nitrogen, oxygen, sulfur and phosphorus. Those six elements are the building blocks for DNA and R

发表于:2019-01-08 / 阅读(60) / 评论(0)

Scientific American(十二)月

外贸口语一点通第196期:货物保险之巧问巧答

Could you find out the premium rate for porcelain? 您能查一下瓷器的保险费吗？ OK, just a second. 可以，请稍等。 No problem. 没问题。 Can you tell me if particular average insurance includes compensation of goods damage? 请问单

发表于:2019-01-23 / 阅读(47) / 评论(0)

外贸英语一点通

万物简史第130期:基本物质(2)

The commercial potential for the stuffwhich soon became known as phosphorus, from Greek and Latin roots meaning light bearingwas not lost on eager businesspeople, but the difficulties of manufacture made it too costly to exploit. An ounce of phosphor

发表于:2019-01-29 / 阅读(51) / 评论(0)

万物简史

英文摇滚歌曲：Fall Out Boy - Irresistible

Coming in unannounced, drag my nails on the tile I just follow your scent, you can just follow my smile All of your flaws are aligned with this mood of mine Cutting me to the bone, nothing left to leave behind You ought to keep me concealed just like

发表于:2019-02-18 / 阅读(53) / 评论(0)

英文摇滚歌曲

英语听力文摘 English Digest 667 火柴

Matches Striking matches, on this Moment of Science. Have you ever had a problem getting a match to light? If so, you might be using the wrong type of match. There are actually two different types of matches: safety matches and strike-anywhere matche

发表于:2019-02-26 / 阅读(60) / 评论(0)

英语听力文摘 English Digest

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basic highway capacity