单词：marine solid waste shredder
单词：marine solid waste shredder 相关文章
Last time we talked about how astronauts eat and drink under weightless conditions in space. Today we'll cover the next question kids love to ask-how do astronauts go to the bathroom in space? It may sound silly, but it's really a good question, beca
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It may sound silly, but its really a good question, because weightlessness does make a visit to the latrine a tricky proposition. Weightlessness poses two main problems in the bathroom. The first is that an astronaut could drift away from the bowl at
英语听力文摘 English Digest
Human Waste Killing Caribbean Coral In the first documented case of a human pathogen infecting a marine species, U.S. scientists say a bacterium in untreated human sewage is killing coral along the Florida coast and in the Caribbean Sea. The finding
VOA标准英语2011年(八月)
The arrival of oil-tainted waste to federally approved landfills across the Gulf coast is raising concerns are raised about the potential impact on the environment and public health An estimated 700 million liters of oil have spilled into the Gulf of
VOA标准英语2010年(八)月
Plastic waste is swamping Asia's landfills, and some ends up at sea, harming marine life. Now, environmentalists and entrepreneurs are attempting to recycle plastic back to its main component - oil. In the northern Pacific Ocean, scientists say a la
VOA标准英语2009年(七月)
But we must leave the pin, for it is the pin itself that holds the parts together. 但是必须把大头针留下，因为两块东西就是让大头针来固定的。 Pins are made of many sizes, and are either black or white in colour. They are pre
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