试验坑 meaning in Chinese
test piston
test pit
trial pit
Examples
- Standard practice for subsurface site characterization of test pits for on - site septic systems
现场腐化系统试验坑亚表层场地特性的标准规程 - Geotechnical investigation and testing - graphical presentation of logs of boreholes , trial pits , shafts and adits
土工调查和检验.矿井孔试验坑竖井和入口测井记录