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For double-action parallel indexing cam mechanism,the characteristics of its instantaneous center curve are determined by the mechanism's speed-ratio .

双作用式平行分度凸轮机构的速比特点，决定其瞬心线的几何特性。

Hong Da液压机械厂Jieyang, is one of more than 20 years of professional standards of design and production of hydraulic machinery enterprises, the main products: Drawing of 4 double-action machine, the framework of hydraulic machine, cutting machine, clips, etc.

揭阳市洪达液压机械厂，是一家具有二十多年专业设计生产标准液压机械的企业，主要产品有：四柱双动拉伸机、框架型液压机、裁断机、压板机等。

I produced a double-action hydraulic stretch-new structure, reliable performance, drawing process of high precision, easy to operate, low energy consumption, the machine is old-fashioned stretch of the new products and updating.

我公司生产的双动液压拉伸机结构新颖、性能可靠、拉伸工艺精度高、操作方便、能耗低，是老式机床拉伸机的换代新品。

It also is equipped with LOVE double-action protection door.

专利爱心双动保护门（ZL98 2 09654.2），极大的提升了操作安全系数。

XRDF series single-action and double-action fibre separating machine is a kind of equipment that commonly used for screening purification, breaking to pieces both at home and abroad.

XRDF 系列单式、复式纤维分离机是国内外常用的筛选净化、碎解设备，它可以同时分离出纸浆中的轻杂质和重杂质，是废纸处理的一种多功能设备。

The double-action reciprocating mud pump every time the completion of two suction drainage movements.

而双作用式泥浆泵每往復一次完成两次吸排水动作。

Our plot more than 10 years of manufacturing experience, painstakingly created for users at home and abroad XCL300-1650T variety of large and medium-sized copper and aluminum extrusion machine double-action extruder.

本厂积十余年的制造经验，为国内外用户精心制造XCL300-1650T各种大中型铜铝型材挤压机以及双动挤压机。

Aiming at the defects on structure design, electromagnetic design, analysis simulation, optimization design and control technology, double-action iron core mechanism, feedback-hold circuit of energy-saving capacitor voltage and intelligent control circuit were expounded, which can be a guidance for wide application...

针对目前永磁接触器在结构设计、电磁设计、分析仿真、优化设计与控制技术等方面存在的不足，重点阐述了双动铁心永磁机构、储能电容电压的反馈-保持电路及智能控制电路。为促进永磁接触器的推广应用指出了进一步的研究方向。

The speed-ratio curve of double-action parallel indexing cam mechanism has special property in shape,which makes it is not available from present transmission function,but designed purposely.

双作用式平行分度凸轮机构对速比曲线的几何形态有特殊要求，这使得该机构的速比不能从同类机构现有运动规律中得到，而必须经过特殊设计。

During normal operation this "Init" button may be used to transmit all double-action toggle switches states by generating short key presses of according switches that are transmitted to computer.

在正常工作的过程中"初始化"按钮可以将所有"双态(double-action)转换按钮"的状态传输至计算机，其原理是产生所有双态按钮的模拟按下操作。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。