It is finally pointed out that the main wear mechanisms of the ceramic tool materials are still abrasive, adhesive, chemical reaction and dispersion wear.
指出陶瓷刀具材料切削磨损时的基本机理仍然是磨料磨损、粘结磨损、化学反应与扩散磨损。
2
Chisels, screwdrivers and sharp tools should never be carried in the pockets. They should be carried in a toolbox, in a carrying belt (sharp or pointed end down); in a pocket tool pouch.
锉子、螺丝刀等尖利的工具一定不要装在口袋里携带，应把它装入工具箱、工具皮带或工具包袋里。
3
Senior editor of Oxford English Dictionary Robert once pointed out that "Withuot Euphemism, language isn't a perfect communication tool any more".