bit breakage

基本解释

Not sure what the damage would have been if the spokes were a bit looser, probably more rim damage and less spoke breakage.
不知道什麽是破壞本來如果輻條得有點松散，可能是更邊緣斷裂破壞和少說話。
blog.sina.com.cn
The drill bit is a direct tool for rock breakage. The rate of penetration is closely related with the drill bit as well as the mechanical properties of the rocks.
鑽頭是直接破碎井底巖石的工具，鑽井速度的快慢不僅與鑽頭有關，而且與所鑽巖石的力學性質密切相關。
lib.swpu.edu.cn
It should be pointed out that upgrading the strength of materials to resist multi-shock fatigue is an effective approach to reduce the socket-breakage rate as well as to improve bit's service life.
竝指出，提高材料抗多沖疲勞的強度將是減少釺頭斷褲率，延長其使用壽命的有傚途逕。