这个圆筒的体积有多少?What's the volume of this cylinder?通常平动和转动同时发生, 例如,圆筒的滚动.Often translation and rotation occur simultaneously, as in the case of a rolling drum.空气的分子会撞击圆筒的整个筒壁和上下两端.The molecules of air would bombard all s...
Make a Mobius strip out of a ribbon of mild steel and magnetise it.用一根软钢条做成麦比乌斯带，将其磁化。An extended model describing magnetization and magnetostriction in ferromagnetic amorphous metal ribbon is introduced.用推广了的模型,讨论带状铁磁非晶...
肺实际上由上千条细微的气管构成。The lungs are in fact constructed of thousands of tiny tubes.不要为体重的细微变化担心。Don't worry about tiny fluctuations in your weight.我们每时每刻都在发生细微的变化。We change subtly all the time....