水力失调
参考答案：
系统中各并联管路的实际流量与设计流量的偏差超过允许范围。
The word “for” in “it must be snowing, for it is so bright outside.” shows that English is a(n) ______ language. ( )
A．object prominent
B．hypotactic
C．SOV
D．analytic
BOD-污泥负荷
