不能調

來源: MoonRiverMe 於 2014-05-31 19:36:16 [舊帖] [給我悄悄話] 本文已被閱讀：次

是一個斷路開關，壓力在允許值外時切斷壓縮機電路，換時要放光冷媒，換好後要抽真空再重新灌，得花大錢

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