The hardest part of designing a properly guarded switch is to fit all the traces on the board and maintain proper voltage spacing.

设计一个合适的保护开关的最难点是适合印制板上的所有布线，并保证适当的电压空间。

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Underlying data acquisition board used PIC18F248 as the main chip, completing voltage monitoring, temperature measurement, CAN communication.

下层数据采集板选用PIC18 F 248作为主芯片，完成电压监测、温度测量、CAN通信等功能。

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The virtual multimeter based on ISA bus is divided into computer and ISA bus board. It is composed of A/D conversion, alternating voltage measurement, resistance measurement and interface circuit.

基于ISA总线的虚拟万用表，分计算机和ISA总线板卡两部分，由A/D转换、交变电压测量、电阻测量及接口电路组成。

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Analysis of a flight recorder from that plane showed that a lithium-ion battery experienced a sudden drop in voltage and was not overcharged, the Japan Transport Safety Board said Wednesday.

CNN: What's wrong with the Dreamliner?