The teaching methods of sports skills have been framed according to their special technical structure and the detailed requirements of sports rules.
体育学习是以具体的运动项目进行的，由于其独特的技术结构和运动规则的具体要求，也就形成了动作技术的教学法。
Main bearing box structure adopts special technical design, with SKF bearing inside.
主轴承箱结构采用专有技术设计，内置进口s KF轴承。
It describes the design idea of special horizontal bevel milling machine. Working principle, structure and main technical data are presented.
阐述卧式口铣削专用机床的设计构思，介绍该机床的工作原理、结构和主要技术参数。
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