英语词汇“optional pilotage”的翻译、意思、用法、释义-英汉汉英词典

单词	optional pilotage
释义	optional pilotage自由引水双向☞exempt pilot-- voluntary pilotage-- optional pilotageoptional pilotage自由引水土木工程名詞
随便看	mineral; agaric mineral aggregate mineral aggregates mineral-- alferric mineral; alferric mineral allowance mineral; altered mineral-- aluminium mineral; aluminium mineral; antipathy mineral-- artificial mineral; artificial mineral assemblage mineral assessory mineral associated mineral; associated mineral association mineralbad mineralbad quelle mineralbad、mineralbad quelle mineral balance mineral bath mineral baths mineral-bearing mineral belt