毒麦的籽实同麦粒的大小和重量相近，很不容易进行机械清除。
It is of nearly the same shape, size and weight as normal grains of wheat and it is exceedingly difficult to separate it by machinery.
毒麦的籽实同麦粒的大小和重量相近，很不容易进行机械清除。
It is of nearly the same shape, size and weight as normal grains of wheat and it is exceedingly difficult to separate it by machinery.
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