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spool valve
auto. 柱式滑阀液压控制系统中控制液体流动方向的轴向滑动阀
hydroel.st. 滑阀; 柱式阀
railw. 制动柱塞阀
tech. 柱式; 柱形阀; 短管阀
spool valve: 19 phrases in 5 subjects
Agriculture1
Automobiles4
Compressors1
Hydroelectric power stations2
Technology11