短语词组短語prelimit swith 預限開關thermostatic swith 調溫開關Swith top 開關蓋proximity swith 接近開關Temperature Swith 溫度開關Tact Swith 輕觸開關ASSORTED SWITH 組郃開關mine swith 鑛用電氣開關vacuum swith 真空開關 返回 swith