handing steering保持: keep; hold; retain; maintain ...预定: fix in advance; predetermine ...航向: -方位指示器 course-and-bearing in ...预定航向: desired course; prearranged heading; predetermined course; preset course对准预定航向: set course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:保持预定航向，即可在微信中查询翻译
