Straight line shape of the grain is better to do, assume that grain is concentric circles, it should use of electric machinery to do.
直线外形的纹路比较好办，假定纹路是同心圆的，那还是应该运用电动类的机械去做。
In several circles, a bucket of grain is reduced to fragments.
一圈一圈，一斗麦子支离破碎。
There are diametrically opposed views in academic circles on the impacts of the price and quantity regarding the fixed quotas for purchasing grain on grain supply.
粮食的定购价格和数量是否影响粮食供给，学术界对此存在着相互对立的观点。
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