经特殊设计的渗流剪切盒可以保证节理在进行剪切渗流试验中，一定压力的渗流水会沿指定路径流过节理面，且不发生渗漏。
The sealing shear box is designed especially to meet the purpose that seepage water of high-pressure flows along appointed path of joint face during the test while no leakage will happen.
定压放气阀系参照api及有关标准优化设计面成，其结构新颖，性能可靠。
Fixes press air escape valve department refer to API and about standard optimize design face become, It structure new, Performance dependable.
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