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- oil transportation at sea 海上石油运输
- Ship transportation in harbor is a subsystem of the transportation at sea. 港口船舶交通是海上交通运输系统的一个子系统。
- Stowage is one of key courses in the operation of cargo transportation at sea. 积载工作是船舶运输生产中十分重要的一个环节。
- The World's Oil Carrier Transportation at Sea 世界海上油船运输
- Ham lost his life to save me from the storm at sea. 哈姆为把我从海上的风暴中救出来而失去了生命。
- I'm all at sea; I've no idea how to repair cars. 我手足无措，不知道怎样修理汽车。
- A cargo of steel was lost at sea. 有一货轮的钢材在海上遗失了。
- He felt completely at sea in his new school. 他在新学校中感到茫然不知所措。
- The World's Bulk Cargo Transportation at Sea 世界海上散货运输
- After three days at sea, we sighted land. 我们在海上航行三天後见到了陆地。
- The ship has spent three months at sea. 轮船已在海上度过了三个月。
- After three days at sea we sighted the land. 在海上航行了三天，我们终于看见了大陆。
- Many people are superstitious about death at sea. 许多人对在海上遇难存有迷信。
- I've been at sea for four lousy weeks in this tub. 我已经乘这条老爷船在海上航行了四个倒霉的星期。
- What is the force of gravity at sea level? 海平面的地球引力多大?
- Radar is used to detect objects in the air or at sea. 雷达被用来探测空中或海上的目标。
- The refugees were at sea for forty days before reaching land. 这些难民在海上漂泊了40天后，他们的船才靠岸。
- A system used by character readers in character recognition where each input document is issued to the document transport at a predetermined and fixed rate. 在字符识别中，字符阅读器所使用的一种系统，在这里输入的文件以预定的和不变的速率被发送给文件传送装置。
- I have been at sea for four lousy weeks in this tub. 我已经乘这条老爷船在海上航行了四个倒霉的星期。
- At present, parts of the oil transportation pipelines in China which bave already run for many years will get into the frequently-occurring stage of accidents. 目前,部分长期运行的管道将要进入事故多发阶段。
