鎽樿锛氫粙绱归噰鐢≒LC閫�(j矛n)琛岄倧杓帶鍒�锛岀敤璁婇牷鍣ㄩ€�(j矛n)琛屽鍔涜(di脿o)绡€(ji茅)锛岃嚜鍕�(d貌ng)鎺у埗姘存车鎶曞叆鐨勮嚭(t谩i)鏁�(sh霉)鍜岄浕姗�(j墨)杞�(zhu菐n)閫�锛屽湪淇濇寔鎭掑鐨勭媭娉佷笅锛岄仈(d谩)鍒版帶鍒舵祦閲忕殑鐩殑銆� 闂�(gu膩n)閸佃锛歅LC锛涜畩闋诲櫒锛涗緵姘寸郴绲�(t菕ng) Abstract锛欰 water supply system with constant pressure was introduced to which used PLC to process the logic control and employed inverter to adjust water pressure. It could automatically control the number of water pump and speed of A.C motor. 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