单词flat pick
un.: 平头镐网络: 拨片
平头镐
Study of Cutting Performance for a Flat Pick
刀形截齿的截割性能研究
Cutting Experiments and Analysis of a Flat Pick
刀形截齿的截割试验与分析
The Experiment Study of Flat Pick Cutting Coal and Rock
刀型截齿截割煤岩的实验研究