1)fret,琴柱，挡子2)bumping post,挡柱3)salvia,琴柱草4)block column of grain,挡粮柱5)support post,支挡柱6)guide, stop,挡门柱
用法和例句
The preliminary scheme proposed is support reinforcement,and the final scheme is support post with man-excavated pile and bolting is put into practice.