ballistic director弹道: trajectory; pathway; path; b ...观测仪: visualizer导弹弹道观测船: missile trajectory measurement ship轨道观测: orbit observation河道观测: river survey; stream measurement下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:弹道观测仪，即可在微信中查询翻译
