[无化] 合成硅酸钙

[00:00.00]cafeteria [00:06.98]cafeteria [00:09.08]n.自助餐厅 [00:16.82]cafeteria [00:18.92]calcium [00:24.97]calcium [00:27.03]n.钙 [00:33.04]calcium [00:35.10]calorie [00:40.84]calorie [00:42.75]n.卡[热量单位] [00:48.88]calorie [00:50.79]c

发表于:2018-12-01 / 阅读(188) / 评论(0) 分类 大学英语六级词汇(拼读版)

Good morning Mrs. Hall. If none of your teeth are bothering you, I'll restore the tooth with the largest cavity. 霍尔太太,早安。 假如你的牙齿不让你难受的话, 那么我就把蛀的最厉害的牙补一补。 This is the tooth th

发表于:2018-12-03 / 阅读(104) / 评论(0) 分类 口腔临床英语对话

Illicitly used Synthetic drugs are chemically produced psychoactive substances that mimic the effects of illegal narcotics, which have been altered just enough to avoid classification as illegal. And this is one reason why these chemicals are dangero

发表于:2018-12-08 / 阅读(154) / 评论(0) 分类 VOA标准英语2017年(三月)

[00:02.98]junk junk food fat vitamin [00:07.67]n.垃圾 垃圾食品 n.脂肪 n.维他命;维生素 [00:12.36]snack stomach fever Sharon [00:17.28]n.小吃;快餐 n.胃;肚子 n.发烧;狂热 莎伦(女子名) [00:22.20]salad peach ripe o

发表于:2018-12-12 / 阅读(156) / 评论(0) 分类 高中英语词汇

When Pyrex(公司名) cookware first came out, it was advertised as the ice box to oven, because itwas made of borosilicate glass which could weather large temperature changes without undergoing thermo-shock and shattering. But today, Americans Pyrex

发表于:2018-12-24 / 阅读(65) / 评论(0) 分类 Scientific American(九)月

This is scientific American sixty seconds science. I'm Christopher Intagliata. Got a minute? When Pyrex cookware first came out, it was advertised as icebox to oven. Because it was made of borosilicate glass which could weather large temperature chan

发表于:2018-12-24 / 阅读(60) / 评论(0) 分类 Scientific American(九)月

One of the most exquisite heat sensors in the worldits not in some government lab. It's in the head of a snake. The pit viper, to be specific. They're incredibly sensitive. They beat any of the synthetic counterparts, even the most expensive semicond

发表于:2018-12-24 / 阅读(94) / 评论(0) 分类 2017年Scientific American(二)月

1.What's the price of that _______ of potatoes? A.beg B.pig C.pint D.sack 2.You don't have to pay any _______ on personal belongings. A.price B.duty C.expense D.elevator 3.Mary is too weak to _______ the piano across the room. A.apply B.appeal C.attr

发表于:2019-01-08 / 阅读(102) / 评论(0) 分类 大学四六级阅读

AUDIE CORNISH, HOST: Scientists have taken a big step towards making synthetic life. In other words, they figured out how to create a living thing with DNA that was written in a lab. NPR health correspondent Rob Stein has the details. ROB STEIN, BYLI

发表于:2019-01-16 / 阅读(112) / 评论(0) 分类 2017年NPR美国国家公共电台3月

DAVID GREENE, HOST: So getting calcium in your diet is essential to keeping your bones strong. Well, what do you do if you can't do dairy? A Navajo graduate student at Northern Arizona University got really interested in that question when he came ac

发表于:2019-01-16 / 阅读(110) / 评论(0) 分类 2017年NPR美国国家公共电台8月

A few months ago the fairy tale came true. 几个月前,童话故事成真了! We announced to the world that we know what these streaks are. It's liquid water. 我们向世界宣布,我们已经知道这些条纹是什么了。是液态水。

发表于:2019-01-18 / 阅读(86) / 评论(0) 分类 TED演讲科学篇

Cassini just a few months ago also flew through the plume, and it measured silicate particles. 卡西尼太空船几个月前又从这些飞溅的水流中穿过,它检测到了硅酸盐颗粒。 Where does the silica come from? 这些硅从哪来的

发表于:2019-01-18 / 阅读(100) / 评论(0) 分类 TED演讲科学篇

Science and Technology Plastics There and back again 科技 塑料 旧法新用 An old idea may help solve the problem of plastic waste 一个老方法也许可以帮助解决塑料垃圾的问题 PLASTICS were once regarded as wonder-materials. They

发表于:2019-01-26 / 阅读(90) / 评论(0) 分类 经济学人科技系列

地球村时代,英语和中文也全球化了。爱吃零食的你怎能不会看包装袋的英文呢?小心哦,不要一不留神,营养没跟上,脂肪增加不少了哟。健康又美味,包装英语跟我学! 国外食品的包装上,

发表于:2019-02-01 / 阅读(156) / 评论(0) 分类 实用英语

零食包装袋上完整的产品成份(ingredients) Nutrition Facts 营养明细 Serving Size 5 pieces (55 g) 每份五片(55克) Servings Per Container About 5 每包约5份 Amount Per Serving 每份含量 Calories 150 Fat Cal.50 % 热量 1

发表于:2019-02-01 / 阅读(151) / 评论(0) 分类 实用英语

manganese n. 锰(元素符号为Mn) mantle composition 覆盖物的成分 Mercury n. 水星 molten v. 溶化;adj. 熔铸的 monitor n. 监视器,监控 mudflow n.[地] 泥流 Neptune n. [天]海王

发表于:2019-02-02 / 阅读(147) / 评论(0) 分类 英文语法词汇

Sleep well, sleep better If sleep has plunged to the bottom of your to-do list, you're not alone. Although the National Sleep Foundation recommends getting seven to nine hours of sleep a night, the average American logs only six hours and 40 minutes.

发表于:2019-02-07 / 阅读(123) / 评论(0) 分类 阅读空间

BEIJING, Nov. 7 (Xinhuanet) -- A huge asteroid will pass closer to Earth than the moon on Tuesday, but experts say there is no cause for alarm. Asteroid 2005 YU 55 will pass about 300-thousand kilometers from the earth. The giant space rock is about

发表于:2019-02-08 / 阅读(91) / 评论(0) 分类 英语新闻

The U.S. space agency NASA's Mars probe Phoenix has detected icy snow falling through the Martian atmosphere. The spacecraft has also discovered material in the planet's soil that is leading scientists a step closer in their conclusion that life pro

发表于:2019-02-08 / 阅读(75) / 评论(0) 分类 VOA标准英语2008年(十月)

SYDNEY, Aug. 5 (Xinhua) -- The Western Australian Government announced on Friday that 14 new substances linked to the manufacture of the synthetic drug Kronic would be banned from Friday midnight. The State Mental Health Minister Helen Morton told th

发表于:2019-02-19 / 阅读(100) / 评论(0) 分类 英语新闻