- 相关词组
- bellows seal波纹管[伸缩鼓]式密封，膜盒[气囊]式密封;
- mohair coney seal黑色马海毛海狸绒
- outer oil seal外轴承油封
- mechanical seal with high back pressure高背压式机械密封
- mid-separate surface seal中分面密封
- company seal公司印章;
- mechanical seal with inward leakage内流式机械密封
- bank seal银行印章
- metal O-ring and nonmetallic O-ring seal金属-非金属双O型环密封
- air tight seal气密
- asphalt seal coat地沥青封缝层;
- mechanical seal with low back pressure低背压式机械密封
- harbor sealn.斑海豹;
- navy seal海豹特遣队;
- mechanical seal with inside mounted spring弹簧内置式机械密封
- metallic-nonmetallic O-ring seal金属-非金属双O型环密封
- elephant sealn.海象，象海豹;
- fur seal海狗;海熊;
- mechanical seal with outside mounted spring弹簧外置式机械密封
- petroleum jelly seal石油胶冻封闭
- 今日热词
- 热门搜索
- sleeve n.[机]套筒，套管;袖子，袖套;唱片套;
- myself pron. 我自己，亲自;
- bili 胆汁;【医】bilirubin 胆红素，胆红质;比莉
- pumpkin pie n.南瓜饼;南瓜派
- how do you do 你好;您好
- service n.服务;（对顾客的）接待，服务;使用;送达;检修;服务站;班车;公共事业;发球;服务性企业(或行业、业务);公共服务系统;公共事业机构(或公司);海陆空三军;宗教礼仪;整套餐具;仆人地位（或身份）v.检修，维修;提供服务;维护;保养;支付(债务)利息
- sideroad n.旁路;支路;小路;人行道;岔道;
- shave vt.& vi.剃须，剃毛;vt.剃，削去;修剪;切成薄片;掠过;
- antique adj.古老的，古代的;过时的，古董的;古时制造的;古风的;n.古玩，古董;古风，古希腊和古罗马艺术风格;
- skateboard n.滑板;
- Indian adj.印度的;印第安人的;n.印度人;印第安人;
- 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;
