单词:HLSW (high-level solid waste)
单词:HLSW (high-level solid waste) 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
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
Magmas 岩浆 Have you heard about liquid rock? 你听说过液态岩石吗? It might sound funny to you. 这听起来可能很好笑。 How can a rock be liquid? While it can be. 岩石怎么可能是液体呢?但有时它还真是。 If the tem
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
3 surefire ways to waste gas I have been reading an awful lot of stories regarding two wheeled motorcycles or scooters as a better way to deal with the high gas prices. I total disagree after all its only money right? Here are 3 simples steps that yo
Lignite is low grade coal which contains more moisture than high grade coal and is dirty to burn. Southland has ten areas with lignite. Solid Energy, which is a government company, plans to mine this lignite. The company has plans to build a $25m bri