Our company is the production of hydraulic stretch of double-action plate of specialized enterprises.

我公司是生产液压双动薄板拉伸机的专业化企业。

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This paper presented the working principle and structure of the double-action vane pump, analyzed its mechanism of variable displacement and characteristics of energy saving.

本文介绍了双作用叶片式二次元件的结构和工作原理，分析了其节能原理和特点。

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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。

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The Colt. 38 Police Positive double-action revolver was manufactured in 1929, the same year as the infamous St.

CNN: Al Capone's revolver sells for over $100,000

Leaning forward, Mike Fifer squeezes off a round from a small-caliber, double-action revolver, piercing the quiet, autumnal New Hampshire countryside.

FORBES: Behind America's Gun Boom: Inside The Comeback At Sturm, Ruger

It appears that JJ Abrams and co. have decided to double-down on the action and villain heavy plot of the Star Trek reboot.

FORBES: First Star Trek Into Darkness Trailer Is A Disappointment