I. D. sealing test plug for high pressurehydrostatic testing of pipe, pipelines and pressure vessels.
密封的测试插头用在高水压测试管，管路和压力容器上。
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Elaborated here in the article is a newly-developed tube end sealing device for the high-pressurehydrostatic testing machine, being applicable to the dual - line hydro-tester.
介绍了一种新型高压水压试管机端头密封装置，可用于双线管材水压试验设备。
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And since a typical tower contains a full day's worth of water, the force of gravity can maintain the hydrostaticpressure of the water system even when the power goes out.