基本解释[物理學]無線電標志信標词组短语短語radio fan marker beacon 扇形無線電指點標radio marker beacon station [航]無線電標志信標電台radio beacon marker 無線電信標標志marker radio beacon 無線電信標;無線電指位標;標位無線電標杆;無線電信標近距離marker radio -beacon 標志無線電信標radio marker beacon更多词组专业释义物理學無線電標志信標