He held that position until lap 7 when Andy found a clear lap and made a time of 1:50.475.
他虽然一直保持领先优势但到第七圈时,被甄卓伟以1:50.475的成功反超。
2
In optics polishing process, the active lap can reshape the profile for fitting the surface of large optical component with different local position and rotating Angle in real time.