润滑

Lubricity evaluation method of dimethyl ether fuel was investigated by correlation analysis on the basis of experiments.

在试验的基础上，采用相关分析法研究了车用二甲醚燃料润滑性能的评定方法。

I produced the drill pipe thread sealed lubrication of fat is good, easy to use, can apply to different depth and scope of various conditions, and other characteristics.

我公司生产的钻杆螺纹密封脂具有润滑性能好，使用方便，能够适用于不同的井深范围以及各种工况等特点。

A mixture of clays and water; pumped down the drill pipe to lubricate and cool the drilling bit.

泥土和水的混合物，顺钻杆而下，起润滑和冷却钻头的作用。

The cylinder of drop forging hammer was improved with oilless lubrication technique.

运用气缸无油润滑技术对模锻锤进行技术改造，使气缸和活塞的使用寿命延长，大大降低了设备的维修费用，也改善了机器的使用性能。

In the JTB series Roots blower developed by Chongqing Chuangu electromechanical equipment Co., Ltd, the single oil base is changed the dual oil base, this avoids to burning bearing by lubrication no good. The check valve and T-joint are designed into one, this simplifies the installation process and avoids to some troubles. The more important is that all parts of the rotor are the overall, this greatly increased the stiffness and received by the market.

重庆川鼓公司研发设计开发出JTB系列罗茨风机，将单油箱改变成双油箱，从而避免了因润滑加不及时或不到位而烧轴承的现象；将单向阀与T型接口设计成一体，简化了安装工序，克服由此引发的故障；更重要的是全部转子部件采用整体结构，大大提高了刚度，因此受到市场欢迎。

The paper also intro- duces a systematic computation and an analysis for the stability of three-degree-freedom gyroscope.

文章又对带槽气体润滑动压球轴承进行了系统的气动力计算与三自由度陀螺仪的稳定性分析。

Generally, its operating condition is under the low-speed and thin oil lubrication, so the viscous friction was usually neglected and the friction torque caused by main influencing factors of elastic hysteresis in rolling, spin of rolling element and sliding friction on contact zone were considered.

低速灵敏球轴承小而稳定的启动力矩和动态力矩对于导航系统的姿态控制至关重要，其工况通常是低速稀油润滑，黏性摩擦被忽略而重点推导接触区因弹性滞后、自旋及差动滑动引起的摩擦力矩。

The electric resistance technique has been used to analyse the factors influencing the formation of the whole-film lubrication.

利用旋压接触面之间的电阻变化，研究了形成全膜润滑的临界条件，同时对影响全膜润滑油膜形成的因素进行了分析。

The morphology and element analysis of the worn scar surface were characterized by scanning electron microscopy and x-ray photoelectron spectroscopy, respectively.

XPS分析结果表明，该离子液体在钢磨损表面形成了含FePO4和Fe4(P2O7)3等物质的边界润滑膜，从而有效地提高了摩擦副的承载能力和抗磨损性能。

Process efficiency , durable degree of emery wheel in improving and reduce and all have a very good result to process the roughness of a piece of surface etc., can meet lubrication of 80m/s high-speed grinding machine , cooling demand , and well have antirusting.

对提高加工效率、砂轮耐用度和减少加工件表面粗糙度等都有很好的效果，能满足80m/s 高速磨床的润滑、冷却要求，且具有很好的防锈性。

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％。