动量椭球 momentum ellipsoid
角动量椭球 angular momentum ellipsoid
振动球式流量计 oscillating ball flowmeter
气动小球测量室 aeroball measuring room
气动小球测量探头 aeroball measuring probe
气动小球测量 aeroball measurement
气动小球通量测量系统 aeroball measuring system
全自动微量滚球粘度计 Automated Microviscometer
定量地球动力学 Quantitative geodynamics
当皮特滑行扑球时，我们的动量意味着冲撞是不可避免的。
When Petr slid in to collect the ball, our momentum meant that a collision was unavoidable.
基于流体质量、动量守恒导出了单管球塞气举和分体式柱塞气举采用“压低液面”卸载的数学模型；
Based on the mass and momentum conservations of fluid, the mathematical model of Two-Piece plunger lift and single-string pig lift which unload by pressing fluid level down is derived.
本文对球函数方程进行了求解，并将球函数方程的解合理地应用于角动量平方算符的本征值问题中。
The solution of spherical function is given in the paper, and it is applied reasonably in the problem of eigenvalue of angular momentum square operator.
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