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先导阀
compr. pilot valve
先导阀见JB/T 8218-1999中 2.5.22
auto. pilot
自动变速器先导阀
auto. priority valve
先导阀: 19 phrases in 7 subjects
Automobiles7
Compressors2
General2
Hydroelectric power stations2
Rail transport2
Steel production1
Technology3