润滑

The AVN2440DS shield machine consists of cutterhead driving system, thrust system, guidance system, segment erection system, grease injection system, main bearing lubrication system, slurry feed and return system, simultaneous grouting system, segment delivery and hoisting system and backup gantries.

AVN2440DS泥水平衡盾构机主要由刀盘驱动、推进、导向、管片拼装、盾尾注脂、主轴承油脂润滑、进排浆系统、同步注浆以及附加接管器、管片吊运、后配套拖车等系统组成。

The AVN2440DS shield machine consists of cutterhead driving system, thrust system, guidance system, segment erection system, grease injection system, main bearing lubrication system, slurry feed and return system, simultaneous grouting system, segment delivery and hoisting system and back-up gantries.

文章摘要： AVN2440DS泥水平衡盾构机主要由刀盘驱动、推进、导向、管片拼装、盾尾注脂、主轴承油脂润滑、进排浆系统、同步注浆以及附加接管器、管片吊运、后配套拖车等系统组成。

In drilling an oil well, mud is used to lubricate the cutting bit.

钻油井时，泥浆被用来润滑钻头。

The esso essien and high level of 220 R and R 320 for compressor oil cylinder provide very good lubrication, and can process compatible with polyethylene.

埃索埃士高 R 220 和 R 320 级润滑油既可为压缩机汽缸提供很好的润滑，又能与聚乙烯过程相容。

Lubrication of internal parts is used long will oil pressure forced the oil into the cylinder and piston rod packing seal of the Department.

内部零件的润滑则采用多头注油器将压力油强制注入到气缸及活塞杆的填料密封处。

According to the variations in friction coefficient, wear rate, temperature of tribo-pair and tribo-surface micro hardness with time, the tribological process lubricated by oil containing Mg_6Si_4O_(10)_8 shows quasi-periodicity with characteristic of damped oscillation, and quasi-period is 200 h; micro-hardness of the worn surface is one time higher than that of 45~# steel substrate.

在实验室条件下，验证了主要组分为Mg6Si4O108的金属磨损自修复剂在45#钢摩擦副表面形成修复保护层的能力，得到了厚3～6 μm的反应层；采用Falex型摩擦磨损试验机进行了长达400 h的摩擦磨损试验，研究了在Mg6Si4O108润滑下45#钢摩擦副的摩擦磨损性能、摩擦副摩擦表面显微硬度和温度随时间变化的情况。

Weighing mechanism shall be temperature compensating and shall have automatic dampener to reduce oscillations.

称重的机械装置应有温度修正和自动润滑以减少震动。

The results under the oil lubricate friction conditions were similar with those under the dry friction conditions. The wear mechanism of 3Cr13 matrix alloy was micro-cutting and distorting wear. For the composites with a low fraction of TiC particle, distorting wear dominated and cutting was partly operating. For the composites with a high fraction of TiC particle, stress fatigue wear and wear of hard phase decohesion has occurred, but the main wear mechanism was still distorting wear. When the wear experiments were performed under the oil lubricate friction conditions, the main wear mechanism has became to abrasive wear and fatigue wear for the composites with the low TiC fraction, and fatigue wear would be to dominate for the composites with the high TiC fraction. There were similar wear mechanisms in H13 and 1Cr18Ni9 matrix composites.

在干摩擦条件下，3Cr13基体合金的磨损机理为显微切削和变形磨损；低体积分数的复合材料磨损机制以变形磨损为主，兼有少量的切削磨损机制；高体积分数的复合材料磨损机制以变形磨损为主，兼有应力疲劳磨损和脆性相剥落磨损；在油润滑摩擦条件下，3Cr13基体合金的磨损以磨粒磨损为主；低体积分数的复合材料磨损为磨粒磨损和疲劳磨损；高体积分数的复合材料磨损以疲劳磨损为主。H13、1Cr18Ni9基体及其复合材料的磨损机制类似于3Cr13基体及其相同体积分数的复合材料。

The water base extreme pressure lubricating liquid possesses excellent stability, cooling property, adhesion property and lubricating performance, good detergency, no bad smell and no toxicity, and is suitable for use in metal machining process.

本发明所制备的水基极压润滑液，具有良好的稳定性、冷却性、粘附性和润滑性，同时清洗性也好，而且无臭无毒，适合作为金属加工过程的润滑剂。

As the diamond tip of the drill revolves, it is lubricated by mud.

在钻机的金刚钻头旋转的时候，泥浆便进行了润滑。

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％。