如果无法找到三同轴的真空接头，那么可以在绝缘的BNC连接处构建金属安全屏蔽(图4 - 18)。

If a triaxial vacuum feedthrough is unavailable, a metal safety shield should be built around the isolated BNC connection (Figure 4-18).

youdao

图2 - 12示出了测试夹具上由两个绝缘子支撑的高阻器(RDUT)。

Figure 2-12 shows a high mega-ohm resistor (RDUT) supported on two insulators mounted in a metal test fixture.

youdao

自行研制了大电机定子绝缘超声波检测系统，它能同时显示被测试样的A扫描脉冲回波和C扫描平面图。

A new ultrasonic testing system has been developed for application to stator insulation of large generator. It provides A-scan signals and C-scan map for tested specimen.

youdao