方法采用口内切口颏部水平截骨前移固定后，再联合利用在颏部置入合适假体的隆颏术，以进一步增加颏突度和颏长度，改善颏部形态。
Methods after horizontal osteotomy the chin moved up and fixed with intraoral incision implant was used in augmentation mentoplasty in order to increase heights and outshoot of the chin.
所得结论对于改进刀形截齿的设计，进一步提高其截割性能和截割效率有一定的指导作用。
The obtained got conclusions may be used to improve the design of the pick, enhance further the cutting performance and benefit the pick.
分析了采煤机滚筒的截齿排列方式，进一步阐明了采煤机工作机构的滚筒截齿排列布置的设计要点，通过改变截齿的排列提高了采煤机的使用寿命。
Through the analysis of arrangement style of cutting teeth of shearer roller, so that the further explanation of arrangement design of cutting roller as working machine of shearer can be made.
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