course instabilitydirectional instability航向: -方位指示器 course-and-bearing in ...不: a block of wood航向不稳定: course mark航向不稳定船: course unstable ship方向不稳定性: directional instability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:航向不稳定性,即可在微信中查询翻译