单词：cold engine sludge
[网络] 冷冻机沉淀
单词：cold engine sludge 相关文章
Airplane Engines In 1945, a new type of airplane engine was invented. It was much lighter and more powerful than earlier engines, and enabled warplanes to fly faster and higher than ever. This type of engine was called the jet engine because it below
英语专业四级考试指南
When we change a liquid into vapour, and cool this vapour till it is liquid again, 将水加热成水蒸气, 然后对其进行冷却直至再次液化, we are said to distil the liquid, and the apparatus for doing this is called a still. 这个过程就
英国学生科学读本
By Mario Ritter Broadcast: October 28, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Farmers have long put animal waste on their fields. They may also use human waste. Mode
VOA2003（下）-农业与经济
You want an example of something toxic? Take a look over my shoulder here. That red sludge spilled out of a reservoir at an aluminum plant on Monday. This happened in the European nation of Hungary. This stuff is toxic. Around 250 people had to leave
CNN2010年(十)月
An official in Hungary says a toxic sludge spill, which has killed four people, has reached the edge of Europe's second longest river, the Danube. Officials say the sludge has reached the Danube, one of Europe's longest rivers. An official also told
VOA标准英语2010年(十)月
本期内容： Researchers in the US have been investigating the final journeys taken by disposable contact lenses. They found 15-20% of US users simply flick these fiddly lenses down the drain via the bathroom sink or toilet. The study suggests tha
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