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Terms for subject Chemistry containing 开关 | all forms | in specified order only
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主控开关main switch
保安安全开关safety cut-off
停车开关stop motion switch
双向开关tow-way switch
应急开关emergency stop cock
开关场分布switching field distribution
开关手柄shift handle
开关switch capsule
开关switching code
换向开关transfer switch
换向开关on-off switch
断路开关disconnect switch
开关oil circuit breaker
电源开关power on/ off button
自动开关式燃烧器burner of automatic on-off type
自动-手动开关auto-man switch
自动转换开关auto matic transfer switch
蒸汽压力开关steam pressure switch
转换开关switch valve
闸刀开关knifebreak switch
高压开关设备high tension switchgear
高液位开关high level switch