Two key factors for drilling high quality holes of carbon fibre reinforced plastics, which are to keep the fine sharpness of the cutting lip of the drill and to use high drilling speed are discussed.

探讨了获得钻削碳纤维复合材料高质量孔的两个关键因素：保持钻头切削刃的良好锋利性和采用高的钻削速度。

The mutilation of COINS occurred when a young Marine made dimes out of pennies, cutting the lip off, to use the COINS in vending machines.

这起摧毁货币的案件起因是一个年轻的水兵为了在自动售货机里买东西就把10美分的硬币切成了1美分的。

Next, it was time to flip the hull and begin cutting along the lip.

其次，这是时间，倒装船体，并开始切割沿唇。