Based on the standard of environment light source requirement in the photoelectric proximity switch tests, and the practical tests complied with this standard, the judgement difference was presented.
基于光电式接近开关所有试验条件中环境光源要求部分标准的制定，以及实际的根据标准进行试验结果判定的差异性。
PLC is as the core of hardware system, and it comprises stepper motor, proximity switch, photoelectric switch, hot resistance, electromagnetic valve et al.
硬件部分采用PLC作为控制核心部件，由步进电机、接近开关、光电开关、热电阻、电磁阀等组成。
PLC is as the core of hardware system, and it comprises stepper motor, proximity switch, photoelectric switch, hot resistance, electromagnetic valve et al.
硬件部分采用PLC作为控制核心部件，由步进电机、接近开关、光电开关、热电阻、电磁阀等组成。
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