往复

This method mainly electricity or compressed air-driven, assembly derusting appropriate device for reciprocating movement or rotary movement, to meet the requirements of the various shelves of the rust.

这种方法主要以电或压缩空气为动力，装配适当的除锈装置，进行往复运动或旋转运动，以适应各种货架的除锈要求。

A cycle is one complete reversal of an alternating current or voltage from zero to a positive maximum to zero again and then from zero to a negative maximum to zero again. The number of cycles per second is the frequency.

周期周期是指交流电流或电压从零到正最大值再到零，然后从零到负最大值再到零这样一个往复的过程；而频率则是指每秒可完成的周期数。

Cycle A cycle is one complete reversal of an alternating current or voltage from zero to a positive maximum to zero again and then from zero to a negative maximum to zero again.

周期 周期是指交流电流或电压从零到正最大值再到零，然后从零到负最大值再到零这样一个往复的过程；而频率则是指每秒可完成的周期数。

And the destination becomes the beginning of another event , so on and so forth.

这个结局又成了另一个时间的开端，如此往复。

The flood tidal current flows on the whole to the east along the coastline in an anticlockwise rotation with the maximum current velocity over 50cm/s, and the ebb current on the whole to the west with the maximum current velocity under 30cm/s.

海口湾潮流为往复流，涨潮方向基本向东，和岸线走向一致，呈反时针旋转运动，最大流速约50cm/s；落潮方向基本向东，呈顺时针旋转运动，流速小于30cm/s。

Spray deposition process can be optimized by studying the scanning regularity of atomizer and other process parameters.

通过对雾化器往复扫描规律以及其它工艺参数的研究，可以对喷射沉积过程进行工艺优化。

This invention is advanced in technique, reasonable and simple, convenient to operation and needs a little time for auxiliary operation; fit to multiple times to-and-fro rolling to realize high extensibility and multiple standard wall thickness, increases produce efficiency, decreases cost and has good economic benefit and application value.

本发明工艺科学先进，合理简单，操作方便，辅助操作的时间短。可多次压下往复轧制，实现高延伸率，实现多种规格壁厚的产品轧制，提高生产效率，降低生产成本，具有很好的经济效益和应用价值。

Unsteady flow of power-law fluid in eccentric annuli with the inner cyinder reciprocating axially is studied in this paper.

本文研究了幂律流体在内管做轴向往复运动的偏心环空中非定常流的流动规律。

In the process of feeding and high-speed separation, under the centrifugal force, the liquid phase is discharged out of the basket through the filter cloth and the holes of the basket wall, and then out of the machine through the tube for discharging liquid, with the solid phase left in the basket.

进料和高速分离过程中，在离心力作用下，液相物穿过滤布和转鼓壁滤孔排出转鼓，经排液管排出机外，固相物截留在转鼓内，分离完毕转速至卸料转速状态，人工使刮刀作升降、回转往复运动，将固相物从转鼓壁刮下，从离心机下部排出。

The wellhead part mainly includes the controlling device, the pneumatic valve, the blowout control box, the damping spring and the plunger catcher, and the downhole part consist of the combination tubing, the buffer spring, the tubing spider and the plunger which reciprocated between the tubing.

井口部分主要包括控制器、气动阀、防喷盒、减震弹簧、柱塞捕捉器；井下部分主要包括大小油管、缓冲弹簧、油管卡定器，以及在大小油管间往复运动的柱塞。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了