来自蒙大拿粉河盆地和怀俄明州的煤炭含硫量低，可保证发电厂不超出本地排污限制。
Coal from the Powder River Basin of Montana and Wyoming tends to be low in sulfur, for example, allowing power plants to burn more without exceeding local pollution limits.
对信阳浉河河口污泥中紫色非硫细菌的类群和数量分布进行了初步研究。
The primary researches on the amount distributions and groups of purple non-sulfur bacteria in estuary sludge of Xinyang Shihe river were carried out.
应用推荐