- 相关词组
- bellows seal波纹管[伸缩鼓]式密封，膜盒[气囊]式密封;
- fur seal海狗;海熊;
- harbor sealn.斑海豹;
- mechanical seal with high back pressure高背压式机械密封
- petroleum jelly seal石油胶冻封闭
- mechanical seal with low back pressure低背压式机械密封
- navy seal海豹特遣队;
- bank seal银行印章
- metallic-nonmetallic O-ring seal金属-非金属双O型环密封
- asphalt seal coat地沥青封缝层;
- mechanical seal with outside mounted spring弹簧外置式机械密封
- company seal公司印章;
- mid-separate surface seal中分面密封
- mohair coney seal黑色马海毛海狸绒
- air tight seal气密
- elephant sealn.海象，象海豹;
- metal O-ring and nonmetallic O-ring seal金属-非金属双O型环密封
- mechanical seal with inward leakage内流式机械密封
- outer oil seal外轴承油封
- mechanical seal with inside mounted spring弹簧内置式机械密封
- 今日热词
- 热门搜索
- ipod n.苹果公司音乐播放器；苹果随身播放器abbr.initial phase of ocean drilling 海上钻井平台;
- 生命树 Tree of Life;arbor vitae;Born to be alive
- thief n.小偷，盗贼;<口>（使蜡外流的）蜡烛心结的烛花;
- persuasion n.劝说，说服（力）;信仰;
- NCBI 生物技术信息中心(National Center for Biotechnology Information)；美国国家生物技术信息中心；美国国立生物技术信息中心
- Acne studios 艾克妮工作室（品牌名，Acne Studios）
- arrow n.矢，箭;箭状物;箭头记号;[天]天箭座;
- dependent adj.依赖的;有瘾的;取决于…;n.= dependant;
- perfection n.完美;完善;最后加工;圆满;
- require v.需要;要求，规定;
- wide adj.宽的;（笑容）灿烂的;张开很大的;广泛的;巨大的;adv.充分地;
- if you come to me 如果你来到我身边; 如果你来找我;原子少女猫;
