在: exist; be living预定: fix in advance; predetermine ...的: 4次方是 The fourth power of 2 i ...航线: airline or shipping line上: upper; up; upward在预定的时间: at stated times给定的航线: set route在预定的时间和地点: the fixed time and place合同规定的航线: contractual route沿计划航线上的航速: velocity made good预定的: default; intended; preconcerted; predetermincd; predetermined; preset; presumptive; scheduled; set连接的航线: commuter air route; feeder air route向南的航线: blue airway校正的航线: correct flight path正确的航线: fairway赚钱的航线: lucrative route; money maker在预定地点的着陆: intended landing在预定地点着陆: make a landing in a predetermined area在航线上: enroute; on course在航线上的: on-course在小航线上: on a tight预定航线: contemplated route; course line; prebriefed pattern; predetermined course; scheduled course选定的航迹: selected track; selectedtrack沿笔直的航线: follow a direct course route etc航线上升性能: en route climb performance