- 相关词组
- supplementary air valve补充气阀
- supply valve供给阀,供水阀
- surge check valve充液阀
- surge valve补偿阀;间歇作用阀
- suspension valve悬置阀
- suppression valve抑制阀
- surface magnet charge面磁荷
- swap action valve交换作用阀;快速作用阀
- suspended magnet悬吊磁铁
- swinging valve平旋阀
- switch valve开关阀;转换阀
- swing-type valve回转阀
- supply valve spring供给阀簧
- supplementary steam valve进汽补充阀
- surface safety valve地面安全阀
- swing check valve旋启式止逆阀;摆动式止回阀
- swing valve回转阀
- sweeping magnet扫描磁铁
- surplus valve溢流阀
- sustaining valve支撑阀;平衡阀
- 今日热词
- 热门搜索
- oral adj.口头的，口述的;口服的;属于或关于嘴的;构成或使用言语的;n.（尤指外语考试中的）口试;
- fancy vt. 认为;想象;想要;自命不凡;n. 想象的事物;想象力;爱好;想要;
- monopoly n.垄断;专卖;垄断者;专利品;
- Yale n.耶鲁;
- hungry adj.饥饿的;渴望的，渴望得到;（统称）饥民;荒年的，不毛的;
- serious adj.严重的;令人担忧的;重要的;严肃的;认真的;庄重的;大量的;
- inventor n.发明家;创造者;发明者;
- beneficial adj.有益的，有帮助的;
- unhealthy adj.不健康的;对健康有害的;危险的;反常的;
- appendix n.附录;阑尾;附加物;
- stomachache n.胃痛，腹痛;
- descendant n.后代;后裔;（由过去类似物发展来的）派生物;弟子;
