常見例句雙語例句A car carrying position sensitive detector(PSD) walked along rail and the parameters of the rail were obtained according to the spot position on PSD.爲解決大跨度軌道測量的難點，提出兩根軌道分別測量然後重搆到同一個坐標系中的方法。www.cmemo.org.cn 返回 rail detector car