空气渗漏率；漏风率

星火英语四级2000核心词 31

[00:11] Day 31 [00:13] gross [00:14] What I want to know is net profit, [00:16] not gross profit. [00:19] halt [00:20] The officer halted his troops. [00:24] handle [00:26] She handled a difficult argument skilfully. [00:31] harbo(u)r [00:32] You may

发表于:2018-12-18 / 阅读(50) / 评论(0)

星火英语四级2000核心词

Texas Scientists Work to Reduce Carbon Dioxide Air Pollution

By Greg Flakus Scientists in Texas are trying to find a way of reducing carbon dioxide air pollution by capturing the gas, compressing it and then putting it underground. This technique could also yie

发表于:2019-01-03 / 阅读(49) / 评论(0)

VOA2004（下）--健康科技

CCTV9英语新闻：在中国22个地区发现的水应力

Some parts of China are dangerously short of water. A recent report confirms that the average per capita water availability in China is 2,000 100 cubic metres per year, just a quarter of the world average. Among the countrys 34 provinces, municipalit

发表于:2019-02-05 / 阅读(59) / 评论(0)

CCTV9英语新闻2014年05月

In the air

Matt and his wife lived in the country. Matt was very stingy and hated spending money. One day a fair came to the nearby town. Let's go to the fair, Matt, his wife said. We haven't been anywhere for a long time.Matt thought about this for a while. He

发表于:2019-02-18 / 阅读(111) / 评论(0)

趣味英语

The Gift

It was at the end of the school year, and a kindergarten teacher was receiving gifts from her pupils. The florist's son handed her a gift. She shook it, held it overhead, and said, I bet I know what it is. Some flowers. That's right the boy said, but

发表于:2019-02-18 / 阅读(61) / 评论(0)

趣味英语

美国习惯用语:320 thin air; come up for air

今天我们要讲的习惯用语都有air这个词。大家都知道air是空气。早在十七世纪，意大利科学家伽利略发现空气似乎没有实质却有重量。后来人们进一步发现高山顶上的空气要比海平面上的空气

发表于:2019-02-18 / 阅读(103) / 评论(0)

美国习惯用语

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学英语单词

2-amino-4-chlorophenol

a political

air-lifted

androstenes

approximationtechnique