单词:acclimation sludge
单词:acclimation sludge 相关文章
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
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
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
If only it were possible to really know what a job will be like, before you take it. Unfortunately, no matter how carefully you prepare and weigh the pros and cons before accepting a new position, there's no way to be 100 percent sure what you're get
According to the famous song, American is beautiful for its spacious skies, purple mountains, and amber waves of grain. If you were to make a music video based on these lyrics you'd probably want mid to late summer images of fruit-laden trees and fie
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