启闭试验多达数万次，使用寿命长。
Long service life. Standing the test of ten thousands opening and closing operation.
安装使用前应进行启闭试验，查看是否正常。
Run a test to see if the valve works before installing and using it.
货舱舱口盖密性试验(启闭试验、应急启闭试验)。
Tightness test (opening and closing test, emergency opening and closing test) for cargo hatch cover.
首先对新型的水力自控滚筒闸进行清水水工模型试验，通过实验可以证实，新型的水力自控闸门是可以按设计要求自动启闭的。
Clear water hydraulic model test was done, and the result verifies that the late model automatic water expansion cylinder sluice can start and stop automatically.
可实现快速启闭，某些结构的启闭时间仅为0.05 ~ 0.1s，以保证能用于试验台的自动化系统中。
Headstock can be achieved quickly, some of the gate structure of time is only 0.05 ~ 0.1s, in order to secure the test-bed for the automated system.
可实现快速启闭，某些结构的启闭时间仅为0.05 ~ 0.1s，以保证能用于试验台的自动化系统中。
Headstock can be achieved quickly, some of the gate structure of time is only 0.05 ~ 0.1s, in order to secure the test-bed for the automated system.
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