vector line navigation 矢量线航法
navigation line 导航标尺
double line class navigation 双线五级船闸
composite navigation line 混合航线
oceangoing navigation line 远洋航线
forward test line of navigation 可航渡测试线
In order to reduce costs and decrease attrition of steering gear is required as straight line navigation and playing fewer rudders.
同时当船舶在营运过程,为了降低成本、减少舵机磨损,需尽可能的直线航行、少打舵。
With the widespread use of map websites and on-line navigation systems, the need for multi-user concurrent queries for travel information is ever-increasing.
随着地图网站和在线导航系统的普及,多用户网络并发出行信息查询服务的需求日益增长。
Gerardus Mercator's projection, published in 1569, was immediately useful because it depicts a line of constant bearing as a straight line, which is handy for Marine navigation.
福西厄斯•墨卡托的投影于1569年问世,马上就派上了用场,因为它把不变的方位描绘为直线,这对航海非常方便。
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