容积负荷率Nv
参考答案:
指单位容积曝气区在单位时间内所能承受的BOD数量。
The teachers promised to __________ the wishes of the parents before making any change.
A.take into account
B.pay attention to
C.consider that
D.take account for
风级风速换算表中5级风相当()米/秒.
A.9
B.12
C.8
D.10