- 相关词组
- bank seal银行印章
- soft packing seal软填料密封
- seal a move封棋
- sliding vacuum seal滑动真空密封
- step seal阶式密封
- gas seal气封;气密;气密层
- inflatable seal充气[膨胀]式密封
- airtight seal空气密封，气密;
- seal point液封点
- vapour seal蒸汽封闭;汽封
- outer oil seal外轴承油封
- gate seal闸门止水
- mohair coney seal黑色马海毛海狸绒
- self-acting seal自紧密封
- metallic-nonmetallic O-ring seal金属-非金属双O型环密封
- bonnet body seal阀帽体密封
- high-frequency seal machine高频熔接机
- inert gas seal惰性气体密封
- metal O-ring and nonmetallic O-ring seal金属-非金属双O型环密封
- company seal公司印章;
- 今日热词
- 热门搜索
- cheap adj.便宜的;廉价的;小气的;收费低廉的;花钱少的;卑微的;令人讨厌的;价低质劣的;（言行）讨便宜的;吝啬的;adv.廉价地;便宜地;低价地
- dynamic adj.精力充沛的;活跃的;动力的;动态的;n.动力;相互作用;驱动力;力学;力度;
- aws abbr.adjustable wire stripper 可调剥线钳;advanced warning system 高级警报系统;
- science n.科学;技术，知识;学科;理科;
- hush puppies 暇步士
- pair n.一双;分两个相连接部分的物体;一对（两个…）;一起拉车的两匹马;v.使配对;交配;
- liberate vt.解放;释放;释出，放出;
- microsoft toolkit 激活工具
- invalid adj.无效的;不能成立的;有病的;病人用的;vt.使伤残;使退役;失去健康;
- midday n.中午;正午;
- sweeten vt.使甜，把…弄香;使温和;使愉快;使悦耳;vi.变甜;
- nutrition n. 营养，滋养;营养品;营养学;食物;
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