cardinal marks of buoyage system浮筒: bowl; float bowl; buoy; floa ...系统: system半浮筒系统: semispar单点浮筒系泊系统: sbm (= single bouy mooring system)单浮筒系泊系统: single bouy mooring system (sbm); single buoy mooring system下载手机词典可随时随地查词查翻译
