Increase the machine-hour output of the cement grinding machine by 10%;
水泥磨机的台时产量提高10％左右；
2
There was a machine in the kitchen which could extract the juice of two hundred oranges in half an hour if a little button was pressed two hundred times by a butler's thumb.
厨房里有一台机器，只要管家用拇指按下小按钮两百次，半小时就能榨出两百个橙子的汁。
3
How many tons of ore can this machine crush in an hour?