然后实验室用这些万用表校准那些在工业校准实验室的用来校准测试仪器的多功能校准器。
LABS then use the DMMs to calibrate multifunction calibrators that industry calibration LABS use to calibrate test equipment.
有一批显示器的故障相似，开机无显示，用万用表电阻挡测试电源线输入端，阻值为无穷大，说明电源线已呈开路。
There are a number of display similar to the fault, boot-free show that blocking electrical multimeter to test the power cord input, infinite resistance, has shown a way that the power cord.
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