查询词典 pulley

At present, there are drilling more than 150 plants, with an annual output of various drilling about 1 million units, export over 20 million units, the drilling of speed through a pulley shift to resolve the pagoda, the governor need to stop the process, open the protective Enclosures, manual transmission, and other procedures, the process cumbersome and poor security, and is governing, not transferred to the spindle speed corresponding to the different materials of various aperture drilling at the best speed, the production efficiency is low.

目前，全国有钻床厂150多家，年产各种钻床100万台左右，出口20多万台，这些钻床的变速都是通过一对宝塔皮带轮换档解决的，调速过程需要停车、打开防护罩，手工换档等程序，操作过程繁琐且安全性差，并且是有级调速，不易使主轴转速调到对应于不同材质的各种孔径钻削时的最佳转速，因此生产效率也低。

ZL02 2 33851.9, the performance of its fast stepless speed regulation Pulley is a traditional pagoda shift by less than the governor, the product also has spindle speed digital form, and other new technology features, is the latest drilling replacement products.

数显无级调速钻床于2003年3月19日获国家专利（专利号ZL02 2 33851.9），其快捷无级调速之性能是传统宝塔带轮换档调速所不及的，该产品还配有主轴转速数显表等新技术功能，是钻床更新换代的最新产品。

If the axial flow pump are used for diesel or gasoline engine power, and can change the size of variable-speed throttle; if the axial flow pump with the power machine is linked to the use of triangular belt or flat belt drives the overhead, you can change to variable speed drive pulley diameter, the replacement of driving wheel or the driven wheel can be, the purpose is to change the transmission ratio.

如果轴流泵是采用柴油机或汽油机作动力的，可改变油门大小来变速；如果轴流泵与动力机相联是采用三角皮带或平皮带间接传动装置的，则可以改变传动皮带轮直径来变速，更换主动轮或从动轮都可以，目的是改变传动速比。

Idlers use stamped bearing house. Using wide clearance bearing and multi-layer labyrinth seal improves service life, reduces rotation resistance and friction coefficient. Cast welding and keyless connection has been used for pulley, Hydraulic coupling and hard surface cone cylinder gear speed reducer for drive unit, angle type structure for head frame, so these improve starting performance, drive efficiency, load capacity and service life, reduce floor area and weight of equipment.

托辊采用了35°槽型前倾结构，辊子为冲压轴承座结构，大游隙轴承和册层迷宫密封，提高了寿命，降低了旋转阻力和摩擦系数，滚筒采用了铸焊结构和无健联接，驱动单元采用了液力耦合器和硬齿面圆锥圆柱齿轮减速机，头架采用角型结构，从而改善了启动性能，传动效率，承载能力和使用寿命，减少了占地面积和设备重量。

Simply attach the second Tibloc to your side of the haul line with a long sling, then step down on the sling to pull the rope through the carabiner-pulley.

然后向下踩绳套，通过锚点上的铁锁组成的滑轮，就可以把包拉上来了。

At midnight, Alex and Paul made a ghost out of a white sheet, a steel cable, a rock, and a pulley.

截至午夜， Alex和Paul提出了鬼出一个白色的资产负债表，钢丝绳，一石击，以及滑轮。

Using a straight bar attached to the high pulley of a cable station, Mrs Obama does as many tricep pushdowns as she can without resting. She then follows it up with a set of hammer curls using dumbbells to work her biceps.

米歇尔会先用连在一根直杆上的高拉滑轮拉力器进行无间断地下压三头肌训练，而后立即举起哑铃做一组锤式弯举的动作，来锻炼二头肌。

Run-time in the tape, with occasional rotation pulley to reduce belt damage due to friction and improve the life of skirts, at the same time, the extension of the entire service life of corrugated wall zone.

在胶带运行时，托带轮随着转动，减小胶带因摩擦损坏，提高裙边的使用寿命，同时也就延长了整条波状挡边带的使用寿命。

The reason of low system efficiency of the mechanical lifting is: unavailable match between transformer and asynchronous motor with large capacity of equipment and large self-consumption; large average no load less of Y series electrical machinery (31.4% of the total oilfield electrical machinery) with 2.86kw; limited adjustable extent of stroke of the electrical machinery in low-liquid produced wells with minimum value of 4 times per minute for limitation of minimum rotation of the electrical machinery and minimum arc of contact of pulley. Energy consumption will be waste for 1 to 1.5 times per minute is enough.

分析显示，造成抽油机系统效率低的原因主要是：变压器与异步电动机之间匹配方式不合理，设备容量大，自身损耗大；占油田电机总量31.4%的Y系列电机的平均空载损耗大，为2.86kW；低产液井电机的冲次可调范围有限，受电机最低转度和皮带轮最小包角限制，其最小冲次仅可调到4次／min，但1~1.5次／min的冲次即可满足生产需要，造成能耗浪费。

Key words: screw, pulley, the cavity, the belt.

要害词：螺杆、带轮、腔体、皮带。

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％。