The bone is the mountain two parts of compositions, a part supports bone's rack.

骨头是山两部分组成，一部分是支撑骨头的架子。

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Gear drawing standards - part 1: for spur, helical, double helical and rack.

齿轮制图标准。第1部分：正齿。螺旋齿。双螺旋齿和齿条。

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The rack of aluminum ingot stacker plays an important part in the process of stacker.

在堆垛的过程中，铝锭堆垛机的机架起着重要的作用。

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All the best boots come from the American West and Mexico, and for the most part, buyers have two choices, just as they would for suits or shirts: off-the-rack or bespoke.

FORBES: The Best Handmade Cowboy Boots You Can Buy Right Now