... engine thermostat housing drain valve 发动机恒温器壳放泄阀 engineer's brake valve 司机制动阀 equalizing valve 平衡阀, 均匀阀, 减压阀 ...
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司机制动阀 (Eurotrol)只控制空气制动：列车管减压及再充气，快速缓解，过充及随后的消除。
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短语
司机制动阀杆
engineer's brake valve spindle
司机制动阀手柄
engineer's brake valve handle
司机自动制动阀
driver's automatic brake valve
司机真空制动阀
driver's vacuum brake valve
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