Fixing attention on the active controlling causes of water hammer, for the long_distance water supplysystem, the optimal control of transient multiple valves regulation is put forward.
着眼于水锤发生源的主动控制，对于长距离输水系统的水锤现象提出了瞬态多阀调节最优控制理论。
2
The marketing consciousness of the power supply enterprise revives gradually under the multiple pressures of pluralism, electric system reform and market demand pluralism.
供电企业的营销意识在市场供应过剩、市场需求日趋多元化和电力体制改革的多重压力下逐渐苏醒。
3
A UFAD systemsupply air path might consist of a single zone splitter connecting to multiple zone supply plenums which in turn could each supply one or more conditioned zones.