The experiment showed that the high quality surface roughness was easy to obtain by increasing the cutting speed and decreasing the feedengagement.
高速切削试验表明：切削速度的提高和每齿进给量的减少有利于改善加工表面粗糙度。
2
The indexing pawl advances a fastener into operative engagement with the feed pawl upon movement of the second canister portion from the open position to the closed position.