海上的英文：
maritime

Sea route;sea-lane
海上交通线

The sea is rough.
海上波涛涌.

naval supremacy
制海权;海上霸权

The following administrative punishments shall be given pursuant to Article 44 of the Maritime Traffic Safety Law
依照《海上交通安全法》第四十四条的规定，处以下列行政处罚

Then rowed for a few miles across the Caribbean until they arrived at a tiny coral island.
然后在加勒比海上划了几英里，到了一座珊瑚岛上。

Venice reigned as the major sea power of the Mediterranean during the Middle Ages.
中世纪时，威尼斯以地中海的主要海上力量而称雄。

We were allowed topside to enjoy the fresh ocean breeze or catch a smoke
有时也允许我们到甲板上去透透海上的新鲜空气，抽烟。

Violations of the Administration of Safety Supervision of the Carriage of Dangerous Goods by Sea
违反海上危险货物载运安全监督管理秩序

Flotation collars are used to buoy space capsules that land in the sea.
浮圈是用来当浮标，指示降落海上的太空舱。

At 9:50 the plane began a smooth descent through the cloud-smudged sky to Shanghai
9点50分，飞机在上海上空开始穿过浓云平稳下降。

maritime sanitation devices
船上卫生设备

It is a unique episode, without example in maritime history.
在航海史上没有先例的独特事件。

He had sole jurisdiction in maritime and seafaring causes
他对海商案件拥有专属管辖权。

The maritime passage was a good augury for the aerial passage.
顺利的航海仿佛也是航空的好预兆。

The balance of maritime superiority has tipped in favor of (against) us.
海上优势已经转到(不在)我们这边了。