Objective:To investigate the effect of femoral intertrochanteric fracture in elderly patients treated with the double heads compressive hollow screw.

目的：探讨双头加压空心螺钉在老年股骨粗隆间骨折中的应用价值。

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Using 9 cadaver femora instrumented, the fracture of femoral neck was fixed with 3 hollow double heads compression screw, 3 solid screw and Trifin respectively.

利用9具成年新鲜股骨尸体标本，分别采用中空双头螺纹加压钉、实心螺纹钉、三翼钉进行股骨颈骨折内固定，并进行生物力学实验。

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Objective: This article introduces about the three double heads empty compression screw (DECS) and its clinical application for treatment of fracture of femoral neck.

目的：探讨治疗体骨颈骨折采用三枚双头空心加压钉的生物力学原理和临床应用。

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According to Southern Weekend, a Chinese newspaper, the party's organisation department decreed in 2010 that political-legal committee heads should no longer double as police chiefs.

ECONOMIST: China��s security state

Notifications can be cleared out with a single long-press, chat heads can be dragged around anywhere on the screen, double-tapping a photo marks it as liked, and flipping through status updates is as easy as swiping left or right.

ENGADGET: Facebook Home hands-on (video)

Nor will our economy after the triple whammy of double digit unemployment, double digit inflation, and an uncontrollable budget deficit comes down on our heads.

FORBES: Ben Bernanke's Lone Positive Legacy: A Return To The Gold Standard