This paper derives the motion property equation for Ravigneaux planetary transmission.
本文推导了拉维娜式行星齿轮变速器的运动特性方程。
Unfortunately, the senators' plan ignores the economics of illegal immigration. Its laws of motion are set out in a recent paper* by Gordon Hanson of the University of California, San Diego.
不幸的是,参议员忽视了非法移民带来的经济学意义。
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