The bell crank is attached to the universal joint, left and right tie rods, and to the trike frame. The bell crank assembly is shown below.

贝尔曲柄相连的万向节，左，右拉杆，并能三轮车框架。钟曲轴装配如下。

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The bottom bracket axle is permanently mounted to the right hand crank and has splines for the left hand crank.

而中轴本身是和(安装大飞的)曲柄连为一体的。

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And while they were impressed with the 30 fps, 1, 280-by-1, 024 (interpolated, of course) video, they found that the audio quality from the built-in mic left a lot to be desired, having to crank up the volume in order to hear each other clearly, resulting in some nasty feedback.

ENGADGET: Microsoft LifeCam VX-6000 reviewed