This would givearough estimate of motor length and therefore indicate whether the application is feasible or not.
这将使一个粗略的估计,因此,电动机长度表明申请是否可行与否。
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Step Four: Next, take the dowel; using a grinding instrument (I used an industrial one because it was quicker) grinds the dowel at uneven intervals to givearough, rugged, distorted bark effect.