Increased efficiency in the use of water and wind helped with such tasks as pumping, milling, or sailing.
提高水和风的利用效率有助于抽水、碾磨或航行等工作。
2
We find it difficult to get to know people personally when they are milling about and dispersed in large groups.
我们发现，当人们成群结队地到处乱转时，我们就很难亲自去了解他们。
3
Through the theoretical model and milling experiment they discuss the condition of producing forced vibration and chatter inmilling process and the chatter characteristics.