Mainly by the pilot valve seat, valve, diaphragm, spring, adjusting springs and other parts.

导阀主要由阀座、阀瓣、膜片、弹簧、调节弹簧等零件组成。

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The disquisition pilot study about the computer assisted optimization design of a screw spring of many radices using math layout theory conjoint to computer programmer method with a exemplity.

笔者将数学规划理论与计算机程序设计方法相结合，通过实例对多股螺旋弹簧的计算机辅助优化设计进行了初步探讨。

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If the pilot valve spring coupled driven sleeve, inhibited the spring swing to lead more stable valve movement.

若导阀弹簧配上导向套筒，则可抑制弹簧的摇摆，使导阀芯运动更平稳。

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Census determined during the spring pilot test that the online census forms were user-friendly, Leslie said.

CNN: Census Bureau will allow millions of citizens to file census forms online

Last spring her firm, along with producer Burnett, sold the WB a pilot for a sitcom that followed an American family motoring around Europe.

FORBES: Magazine Article