Automatic cam chain tensioner means minimal maintenance and longer engine life. 自动凸轮链条张紧器使得维护量降到最小并延长了引擎寿命。
He's an aerospace engineer,and works for Orlando Aircraft Corporation. 他担任航太工程师，为Orlando飞机公司工作。
Princeton University - Department of Mechanical and Aerospace Engineering go! 普林斯顿大学机械和宇航工程系!
During holding the position of year study and life committee member, the job is serious and responsible, sureness agrees to work, get teacher reputably. 担任年级学习和生活委员期间,工作认真负责,踏实肯干,受到老师好评。曾获二、三等奖学金,"创三好积极分子"及"优秀共青团员"称号。