- 相关词组
- pump out valve抽空阀
- pushover seat轻便座椅
- pump inlet check valve泵进口止回阀
- quadruple valve四重阀
- pump suction valve seat泵吸入阀座
- pump room sea suction valve泵舱通海阀
- pump outlet valve泵排出阀
- pump valve seat泵阀座
- push button valve按钮阀
- pump valve pressing spring泵阀压紧簧
- pump drive assembly泵传动装置
- puppet valve随转阀;提升阀
- pump relief valve泵安全阀;泵保险阀;泵排泄阀
- pump valve泵阀
- pump discharge control valve泵出口控制阀
- purge valve放气阀
- push valve推压式水阀
- pump inlet valve泵吸入阀
- pump room sea valve泵舱通海阀
- pyloric valve幽门瓣
- 今日热词
- 热门搜索
- borrow vt.& vi.借入;借钱，借用;[数]由上位借;抄袭;n.借，借用;担保物，抵押;[英史]什一税;
- clearly adv.清晰地;易懂地;显然地;
- promote v.促进;促销;晋升;使…升级;
- merely adv.只不过;仅仅;
- quart n.夸脱（液体或固体的容积单位）;
- literature n.文学;(某学科的)文献，著作，资料;文学作品
- compliance n.遵守;服从;
- dot n.点，小圆点;vt.打点于;散布于;点缀;以小圆点标出;
- cash n.现金;资金;v.兑现（支票）;
- web n.蜘蛛网，网状物;[机]万维网;织物;圈套;
- let me do it for you 让我来替你做;让我来帮你吧
- worry v.（使）担心，发愁;烦扰;攻击;n.担心，发愁;烦心事;
