...结构较为复杂,滚珠轴承的制造成本相对较高,为了控制产品成 本,便产生了双滚珠与单滚珠两类滚珠轴承: 双滚珠轴承(two Ball):应可算是滚珠轴承的典型代表,在中心柱内安装上下两个滚珠轴承,除具有阻 力小、寿命长等特点外,还具有工作噪音大的不足之处,...
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Two Ball Bearing 双滚珠轴承 ; 双滚珠
two ball games 两场球赛
I put in a two-ball 我投进了一个两分球
Two Ball Juggling Patterns 两个球杂耍模式
Two ball double acting pumps 双球双作用泵
two-ball testing 双球检查法
two row ball bearing 双列滚珠轴承
Some people enjoy football, while others like basketball. These two ball games are the most popular in China.
有些人喜欢足球,有些人喜欢篮球,这两项球类运动在中国都很流行。
I've got a rubber and two ball pens.
我有一块橡皮和两支圆珠笔。
Every driving interface module could equally be driven by one or two ball leading screws.
每个驱动接口模块均可由一根或两根滚珠丝杠驱动。
In two thousand five, Ball State University in Muncie,Indiana, began a program called "Degree in Three."
VOA: special.2009.07.23
He has a little ball. A little two- or three-year-old kid has a ball.
他有一个小球,一个两或三岁的孩子有一个球。
You can either throw the ball or you can run the ball. Those are only two ways.
你要么扔球,要么带着球跑。就这两种方式。
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