Theoretically sludge yield is nil for the extended aeration process.对延时曝气法而言,理论上污泥生成量应为零.This is true for BOD removal, aeration and biological growth.这对生化需氧量的去除, 通气,生物生长都是适用的.Those that are used should be equipped with a...
This is a well designed easel which folds up quickly and neatly.这个画架设计得很好,可以迅速而整齐地折叠起来.I took it from the easel and held it up to the windows.我把画从画架上取下来,把它举到窗户前.He paused in the middle of folding up his easel.他画架收到一半,却停了...
霍尔德曼后来因执行了一些命令而遭贬黜.Haldman was later disgraced for orders he carried out.苏轼多次遭到贬黜.Su shi was demoted from his position many times.那个不诚实的大臣被公开贬黜了.The dishonest minister was publicly disgraced....