往复的

Continuously reciprocating piston movement, the water pump and water pressure on the continuous process of alternating.

活塞不断往复运动，泵的吸水与压水过程就连续不断地交替进行。

In this paper, researched the phase-out synchronous control methods of the linear motor driving three cylinder reciprocating pump.

本文研究了直线电机驱动三缸往复泵的异相同步控制方法。

LT-S series machines are widely used in sub-metal factories at home and abroad. It can separate slag generated by welding, metal powder and flux powder when dealing with submerged arc welding flux back and forth.

本机广泛运用于国内外金属结构行业，能分离处理埋弧焊接时焊剂往复使用时产生的焊渣、金属粉末、焊剂粉末。

The oil extraction rod is connects the pumping unit and the oil pump transmission device, Through reciprocal motion extraction petroleum.

抽油杆是连接抽油机和抽油泵的传动装置，通过往复运动抽取石油。

Special designed drive outfit and PLC are adopted to control object moving to-and-fro and rotating at prearranged positions.

采用特殊设计的传动机构结合PLC控制物体作直线往复运动和在预定位置作自转运动。

Steering is controlled by applying horizontal to-and-fro forces into the same handlebar.

指导控制运用横向到往复部队相同的车把。

Particularly the gap between the hydraulic pump, hydraulic motor and gearbox oil seals and hydraulic rotary cylinder reciprocating dynamic seal product quality most.

差距尤以液压泵、液压马达和变速箱用旋转油封及液压缸往复动密封的产品质量最甚。

In the part of mechanical design, The output shaft of stepping motor connects ball screw with coupling joint, and enables worktable auto-reciprocating under the support of linear rack.

关于机械设计部分，电机输出轴经过联轴器连接滚珠丝杠带动工作台运动，工作台在直线导轨的支撑下做直线往复运动。

Description: This project shall adopt the double-mixing-shaft reciprocal rotary distribution design, with the vibration excitation/isolation system to be floating-connected by double-seated spring and hydraulic system adopting highly-dynamic performance proportion, making unnecessary a separate motor for driving and ensuring high compactness of blocks. The machine should make less noise than similar products, operate quickly, reduce the impact upon change of direction and save energy. Each joint should be linked with knuckle bearing and provided with lubricating device to prevent wear and tear. The automatic control system should use PLC and HMI display of operation, providing accurate and explicit detection of faults.

内容说明：本项目采用双搅拌轴往复旋转布料设计，激振隔振系统采用双座双弹簧浮动连接，液压系统采用高动态性能比例，可使砌块成型机不需要单独电机驱动，能保证砌块密实度大；机台噪声比同类机台小，运行快速，降低变向时的冲击配备，节约能源；各关节部位均用关节轴承联结，具备润滑装置不易磨损；自控制系统选用PLC编制控制器，操作人机界面显示，故障准确明确。

It is the natural back-and-forth ping-pong ," she said."

这是科学界正常的往复现象，像乒乓球运动一样。&&

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。