查询词典 worm

The theoretical contact line between the two meshing surfaces can t be obtained and therefore, the transfer quality of worm gearing is usually worsened.

一、引一言传统的蜗杆传动设计方法得到的共扼齿面，理论上是作线接触的。

A new gear grinding way without axial feeding based on the principle of the worm gearing,and how to make up the machine,motions needed in the machine and relationship of the motions are dissertated.

论述了基于这种原理的蜗杆砂轮磨削圆柱齿轮实现无轴向进给磨削的方法及其机床构成和所需要的运动及其相对关系，分析了完成磨削所需要的各种运动及其实现方法。

The tooth contact and kinematic precision of cone-generated double-enveloping worm gearing with machining and assembling errors have been investigated.

对存在加工及装配误差的锥面二次包络环面蜗杆传动进行了接触分析，探讨了各种制造误差对齿面接触质量和运动精度的影响规律和影响程度，提出了矫正由加工误差引起的齿面接触偏倚，减小运动误差的装配调整作业法。

However, a disadvantage of worm gearing is the high sliding velocities across the teeth, the same as with crossed helical gears.

然而蜗杆蜗轮传动机构中存在齿间有较大滑移速度的缺点，正像交错轴斜齿轮那样。

However, a disadvantage of worm gearing is the high sliding velocities across the teeth, the same as with crossed helical gears.

但是，蜗杆传动装置的一个缺陷就是，同交叉轴螺旋齿轮一样，两者在牙口之间都会产生很高的滑动速度。

Guinea worm disease usually does not kill, but it is extremely painful.

一般来说，几内亚线虫病是不致命的，但却是非常痛苦的。

More than two hundred million people suffer from this parasite worm disease. Mostly in developing nations in.

有20000多万人患有寄生虫病，大部分居住于热带气候的发展中国家。

That is the technical name for Guinea worm disease.

当地政府为服务提供了很多支持。

More than two hundred million people suffer from parasite worm disease.

超过2千万人正在遭受到这种寄生虫病。

More than 200 million people suffer from this parasitic worm disease.

超过2亿的人患有这种寄生性蠕虫病。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。