onboardadj.机上的；装载的adv.在板子上onboard expansion站内扩展onboard equipment机载设备onboard switching板上开关onboard subnetwork星载子网onboard regulation板上调节onboard processing在轨数据处理onboard video image弹载视频图像onboard transceiver机载无线电收发机onboard calibration可见光onboard application机载软件