按主体词字母查询
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V
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siccative varnish 快干凡立水,快干清漆
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spar varnish 船舶用漆,舰艇用漆
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synthetic varnish 合成清漆,人造清漆
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balanced valve 平衡阀
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ball valve 球形阀,球阀,浮球阀
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beam-deflection valve 偏转电子束管
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beam-power valve 电子束功率管
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steam valve 蒸汽阀
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stop valve 断流阀
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straight flow rotary valve 球阀,转动阀
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straight flow valve 直流阀,顺流阀
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straight way valve 直流阀
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suction valve 吸水阀,吸入阀
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supplementary valve 辅助阀
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surplus valve 溢流阀
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