course marks航向: -方位指示器 course-and-bearing in ...标: Rockwell A scale船航向标志: [航海学] ship heading marker航向标记: course mark; heading marker航向标线: lubber line; lubber margin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:航向标,即可在微信中查询翻译