onboard

First came the turbojet, now obsolete, then the turboprop, which is still found onboard small planes.

最开始的引擎是涡轮喷射式，目前已淘汰；然后是涡轮螺旋桨式引擎，现在仍可在飞上看到。

The ships are fitted with C- and S-band monopulse tracking radar, Cinetheodolite laser ranging and tracking system, velocimetry system, and onboard computers to track and control the spacecraft.

测量船配备有C- S-波段的单脉冲跟踪雷达，激光测距经纬仪跟踪，测速舰载计算去跟踪控制宇宙飞船。