tap模锻锤安全阀总管三通管试验分接头
impactor relief valve manifold tee test
转向系统压力试验分接头
steering system pressure test tap
短路通断试验系统
short-circuit make-break test system
通断试验
on-off test
switching test
making and switching test
making and breaking test
比较试验与分析
comparison test and analysis
理论与试验分析
theory and experimentation analysis
短路分断试验
short-circuit breaking test
回归正交试验试验
regression-orthogonal design
插皮枝接试验
bark grafting with cuttings
超高频试验接收机
ultra-high frequency test receiver
充压试验接头
charge pressure test nipple