滚筒直径可根据用户需要定做。
The roller's diameter can made according to customers'requirement.
同一种滚筒直径又有几种不同的轴径和中心跨距供设计者选用。
One drum diameter has varied diameters of shaft and central spans so that the designers may have choice.
这是原文，直译的话，应该是“传动滚筒直径在一定程度上根据皮带跑偏特性来定义。
The necessary pulley diameter is defined at a certain radius by the deflection properties of the belt.
指出每种绕带滚筒直径均对应一个最佳钢带厚度，不同直径的滚筒应卷绕厚度最佳的钢带，以获得最大的举液高度。
It is pointed out that each belt drum diameter is corresponding to an optimum belt thickness, and steel belt with optimum thickness should be coiled to obtain the maximum fluid lift.
处在所述滚筒体另一端的第二图像区域，其具有第二平均直径；
The third image area has a third average diameter larger than the first and second average diameters.
而石子很多，直径又很大的河道就必须得使用滚筒式筛子。
While many, diameter and great stones of river channel will be to use roller-type sieve.
而石子很多，直径又很大的河道就必须得使用滚筒式筛子。
While many, diameter and great stones of river channel will be to use roller-type sieve.
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