observation of navigation obstruction
observation of navigation obstruction
[测绘学英汉词典]
observation of navigation obstruction航行障碍物探测
用扫海测量或水深加密测量方法探测礁石、浅滩、沉船等航行障碍物的准确位置、最浅深度和延伸范围等。
是什么意思,observation of navigation obstruction的解释,observation of navigation obstruction的翻译