central principal axis of inertia 中心惯性轴 ; [力] 中心惯性主轴
principal axis of stress 主应力轴 ; [力] 应力主轴
principal axis of ellipse [力] 椭圆主轴
principal axis of compliance [数] 柔性主轴
principal axis of stress tensor 应力张量主轴
principal axis of symmetry 主对称轴
principal axis of pressure 主压力轴
principal axis of quadric 二次曲面的主轴
The bearing at the bottom plate center is fixed with the principal axis of the duster.
下盘中间的轴承中以键固定着喷粉机的主轴。
Application: Medium and large size electromotor, engine, principal axis of machine tool and so on.
应用领域：中大型电动机，发动机，车床主轴等。
The principal axis of one's life is the conformance to the traditional models and rules, which the society leave behind.
个人生活史的主轴是对社会遗留下来的传统模式和准则的顺应。
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