主要研究结果如下：(1)研究现有脱粒装置的性能、优缺点及适应性，确定了谷子脱粒装置的总体结构方案。
The main result of study is as follows: (1) the scheme of threshing mechanism was confirmed, base on the performance, advantages-disadvantages, and adaptability of threshing mechanism.
目的探讨采用口内入路的不同术式矫正下颌角嚼肌肥大畸形的优缺点及适应证。
Objective To evaluate the surgical corrective results of prominent mandibular Angle with masseter muscle hypertrophy by using intraoral approach.
本文对神经介入治疗的各种颗粒性栓塞材料进行综述，分别介绍了不同类型的栓塞材料的物理性状、作用机理、优缺点及临床适应证。
This article reviews the various kinds of granule embolic materials in aspects of the physical characteristics, mechanism, advantages, disadvantages and clinical indications.
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