| 4. | Traveling cranes , drying furnaces , transformer wiring facilities , transformer automatic inspection machines , pressure meters , insulation resistance meters , ac dc stabilized power sources , memory high coder brightness meters , light meters , film thickness meters , noise meters , hand thermometers
起重机，干燥炉，变压器卷线设备，变压器自动检查机，耐压计，绝缘电阻计，交流直流稳定性电源，内存快速编码器亮度计，光度计，膜厚计，噪音计，手指尖温度计 |
