two-position controller 双位控制器 two-position regulator 双位调节器 two-shell lithium bromide absorption refrierating machine 双壳溴化锂吸收式制冷机 ..
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on-off two position regulator 双位开关调整器
off two position regulator 双位开关调整器
onoff two position regulator 双位开关调整器
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