- 相关词组
- roughing hand taper reamer手动粗切锥铰刀
- rotary pump with liquid piston液环泵
- rotary motor pump回转式马达泵
- roughing vacuum pump粗抽泵
- rotary pump旋转式泵
- rotary piston pump旋转活塞泵
- rotary oil sealed mechanical pump旋转式油封机械泵
- rotary mechanical pump回转机械真空泵
- roughing pump低真空泵
- rotary roller pump回转滚筒泵
- rolling piston radial pump旋转柱塞径向泵
- rotary oscillating pump回旋振荡泵
- rotary piston vacuum pump定片真空泵
- rotary hand drill手摇钻
- rotary oil pump回转油真空泵,旋转式油泵
- rotary moving blade vacuum pump旋转刮板真空泵
- rotary gear pump旋转齿轮泵
- rotary gas ballast pump回转载气泵
- rotary mercury pump旋转汞泵
- rough pump初步抽气机
- 今日热词
- 热门搜索
- respect vt. 尊敬，尊重，敬重;关于，涉及;遵守，遵从;注重，重视;顾及;不损害;仰慕;不违背;慎重对待，谨慎从事n. 尊敬，尊重，敬重;（事物的）方面;关系，关联;注重，重视;敬意，问候;细节;着眼点
- good adj. 好的;优质的;符合标准的;可接受的;令人愉快的;令人满意的;合情理的;有说服力的;有充分根据的n. 合乎道德的行为;正直的行为;善行;有道德的人;高尚的人;好人;用处;好处;益处
- mouse n.老鼠;鼠标;羞怯[胆小]的人;[非正式用语] 眼部青肿;
- mercy n.宽容;怜悯;幸运;侥幸;
- cast n.全体演员;模子;特征，外貌;投，抛;v.瞥;投射(光线);投(票);扔;抛;挑选(演员);描述;浇铸;
- let me in 让我进去
- ha int.（表示惊讶、欢乐、怀疑等）哈，嘿;
- tendency n.倾向;趋势;偏好;趋向;性情;极端势力;(政党内的)极端派别
- last year 去年;上年;去岁;
- quilt n.被子，棉被;被状物;v.缝（被）;用垫料填塞后缝拢;东拼西凑地做;用摘抄等方法编辑;
- so beautiful 如此美丽；如此漂亮;
- unimportant adj.不重要的;
