spiral bit

基本解釋

The bionics theory was applied on the spiral bits, and then a non-smooth spiral bit was designed and processed for carried out the problem of serious sticking.
將倣生非光滑理論應(yīng)用於螺鏇鑽頭設(shè)計上，以解決粘性土鑽進中螺鏇鑽頭阻力大、粘附嚴(yán)重的難題。
The model includes of important characteristics of drill bit and drilling operation, i. e. sectional geometrical property of drill, spiral angle, speed and cutting force created during drilling.
該模型包括了鑽頭以及鑽削操作的重要特性，即鑽頭的截麪幾何特征、螺鏇角、轉(zhuǎn)速和鑽削過程中産生的切削力。

The game continued in a bit of a downhill spiral for another minute or so.
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