...代写 关键词:西门子S7-300PLC,PID,温度传感器,固态继电器 [gap=1894]Key words】 s:Siemens S7-300 PLC,PID,temperature pickup, solid state relay ...
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bulb-temperature pickup 管式温度传感器
humidity temperature pickup 温度湿度传感器
open temperature pickup 开式温度传感器
Cold shots develop from low casting temperature, and dirt spots result from pickup of sand or slag by molten metal.
较低的铸造温度会形成冷疤，熔化金属出现的沙粒或炉渣的累积会导致污点。
The inventive electronic image pickup device can adequately exhaust heat in the device so as to preventing temperature of image pickup elements from raised.
本发明的电子摄像装置能够充分地将装置内部的热排出至装置外 部，由此能够抑制摄像元件的温度上升。
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