往往烤漆房的上粉率以及粉末涂料本身的带电性都是能有重要的关系的。
Often charged baking room rate of the powder and powder coating itself is also have important relations.
如能得知液滴尺寸与其带电量的关系，对于液滴粒度及其分布的测量是十分重要的。
It is important that is measured the liquid droplet size distribution, if the relation of size and charges is known.
本文利用相对论变换关系计算了沿直线方向匀速运动的带电直线的电场。
The electric-field intensity of a charged straight line moving along the straight line with uniform velocity is calculated by the transformation relation of relativity theory.
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