sec orient截面: section; cross section; cros ...定向: directional; orient; orienta ...表面定向: surface orientation地面定向台: ground-based direction finder轴面定向: axial surface orientation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:截面定向”,即可在微信中查询翻译