And since a typical tower contains a full day's worth of water, the force of gravity can maintain the hydrostatic pressure of the watersystem even when the power goes out.
普通水塔储蓄一整天的用水，由此，即便在停电的情况下，重力作用仍能保持供水系统的静水压力。
2
Adapting to pouring system and filling mold water imitation of gravity cast and low pressure cast, the multi-purpose water imitation experiment set is studied.
研制了一套多功能水模拟试验台，适用于重力铸造及低压铸造浇注系统和充型过程的水模拟试验。
3
The stepped low-pressurized water diversion system is a new type of gravitywater supply system, which is simple in structure and water conservation weir is the pivotal structure.