查询词典 friction ball

A small cube of chalk used in rubbing the tip of a billiard or pool cue to increase its friction with the cue ball.

擦抹于球杆顶端的粉块用来擦弹子球棒梢或落袋台球棒梢以增加其与球的摩擦的一小方块白垩

Games A small cube of chalk used in rubbing the tip of a billiard or pool cue to increase its friction with the cue ball.

擦抹于球杆顶端的粉块：用来擦弹子球棒梢或落袋台球棒梢以增加其与球的摩擦的一小方块白垩

Finally, the wear and tear experiments on the lubricating oil were performed on the four-ball friction machine.

最后利用四球式摩擦磨损试验机对该润滑油进行了摩擦磨损性能测试。

Their friction and wear behaviors as additives in rapeseed oil were evaluated and compared with octadecanoic acid using a four-ball test machine.

以实验室合成的无臭硫化十八酸和硫化廿二酸作添加剂，在四球摩擦磨损试验机上考察了二者对菜籽油摩擦学性能的影响，并同十八酸进行了比较。

Their tribological behaviors as additives in 5 cst and synergetic effects with zddp were evaluated using four-ball friction and wear tester as well.

用四球机考察其摩擦学性能以及与zddp的配伍性能。

As soon as the ball is released, it will begin to slow down because of the friction between the bowling ball and the bowling lane.

当球被释放，它将开始放缓，因为该之间的摩擦保龄球球和保龄球里。

Batting, increased flexibility and friction, the ball can have a certain rotation, resulting in a reduction of the defence of spin ball game.

击球时增加了弹性和磨擦力，可以使球产生一定的旋转，因而出现了削下旋球的防守型打法。

Most of the CPU fan with ball bearings between the use of lubricants, with the aging of lubricants, the lubricating effect on getting worse, leading to friction between the ball and large bearings.

大部分CPU风扇的滚珠与轴承之间会使用润滑油，随着润滑油的老化，其润滑效果就越来越差，导致滚珠与轴承之间摩擦力变大。

There is the best for a good mouse with mouse pad, so that dirt can be greatly reduced through the rubber ball into the mouse of the opportunity, but also an increase of rubber ball and the friction between the mouse pad to operate with a more user-friendly, but also played a certain role in the damping, thereby protecting the mouse inside the photo detecting device.

还有就是最好给鼠标配备一个好的鼠标垫，这样既可大大减少了污垢通过橡胶球进入鼠标中的机会，又增加了橡胶球与鼠标垫之间的摩擦力，操作起来更加得心应手，还起到了一定的减振作用，从而保护了鼠标内的光电检测器件。

Screw on the choice of friction loss, high efficiency, high precision, long life of the ball screw, the electrical selected stepper motor, motor and the ball screw with gear deceleration.The main to modify the lathe is to modify the portrait, horizontal enter to the system in the Whole modification process and choose the automatic knife rest and be processed the thread need by pulser. The whole control system with the CPU of JKW-15T is to control the machine for center, through a plait distance drive tool machine an equipments to carry on control to attain need of process degree.

整个改造过程主要对车床纵、横向进给系统进行改造，丝杠选用摩擦损失小，效率高，精度高，寿命长的滚珠丝杠，电机选用步进电机，电动机与滚珠丝杠用齿轮减速；刀架改造成能自动换刀的回转刀架，由脉冲发生器来加工所需要的螺纹；整个控制系统以JKW-15T型号的单片机为中心，通过编程对机床的驱动设备进行控制以达到所需要的加工程度。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。