Positive mechanical thrust drives plug into body seats to ensure tight bi-directional line seal.

积极的机械推力驱动阀塞进入阀体阀座馁，确保紧密双向管路密封。

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The directional control line of valves are available in a wide range of port sizes and Cv flow capacity.

该生产线的方向控制阀，可在流量范围广泛的港口规模和简历。

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This paper explained the work theory and the process of design about the parallel coupled line directional coupler.

阐述了平行耦合线定向耦合器的工作原理和设计过程。

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For now the 31-year-old plant manager is content to lord over a factory floor of Vermeer Manufacturing Co. in Pella, Iowa, pointing to a directional drill assembly line that used to be cluttered with 20 days' worth of parts inventory.

FORBES: Magazine Article

Hand it to the publisher and editors at Forbes that they are moving Forbes.com from an on-line magazine to a bi-directional, real-time site for information and insight to the world of business and economic news.

FORBES: Changes in Journalism - Get Aboard, or Get Run Over!!