9Price J S. Evaluation of an approach to early separation of grain threshed by a stripping rotor[J]. Journal of Agricultural Engineering Research, 1993, 56(1): 65-79.
10Andrews S B, Siebenmorgen T J, Vories E D, et al. Effects of combine operating parameters on harvest loss and quality in rice[J], Transaction of the ASAE, 1993,36(6): 1599-1607.