除了运用机械将自行车挂在灯柱上，我们还能做什么？
Short of mechanically hoisting your bike up a lamppost, what else could be done?
我们甚至没有讲过它,当我们运用机械能,守恒定理的时候。
We didn't even talk about it when we did the conservation of mechanical energy.
仿真结果表明，运用机械-液压的复合驱动是目前较为合理的方案。
The simulated results indicate that the driving efficiency of semitraiter has been enhanced by using the semitrailer axle(third axle) as a driving axle through Fuzzy Control.
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