a barrier or manned entrance, typically at a border, where security checks are carried out on travellers
(尤指边境)检查站,关卡。
a place on the route in a long-distance race where the time for each competitor is recorded
(长跑比赛沿途)计时处。
a location whose exact position can be verified visually or electronically , used by pilots to aid navigation
(可目测或用电子技术核实确切方位协助航行的)检查点。