They logged up the ship's position regularly.

他们定时把船的方位记入海日志。

He logged the ship's speed at 10 knots.

他在海日志之中记下船速每小时十海里。

The man is a sixteenth Spanish navigator.

那个人是十六世纪的海家。

They were a group of early navigators.

他们是一群早期的海家。

The course of a ship is marked on a chart.

轮船的线是标在海图的。

The journey round Cape Horn demanded a high degree of seamanship.

绕好望角行要求有高超的海技术。

The navigator charted the course of the ship.

领员在海图标出船的线。

Any of several sea birds, such as the fulmar, albatross, or shearwater.

信天翁--传说中海人的守护者--已濒临灭绝了。

These conditions are very hazardous for shipping.

这些情况对海非常不利。

Simulation results show that the method can meet the real-time requirement in the shiphandling simulator.

仿真结果表明，该方法实现的星空视景符合海模拟器的精度要求和虚拟场景中漫游的实时性要求。

Life is compared to a voyage.

人生好比海。

Fog is the sailor's deadly enemy.

雾是海者最致命的敌人。

Columbus' accomplishment, once accepted, enabled mankind to use the existing skills of seacraft for vastly greater undertakings.

哥伦布的业绩一旦被接受，就使人类能利用现有的海技术从事更伟大的事业。

We are only at the beginning of the voyage,and have to learn an entirely new system of seamanship.

我们刚刚踏的第一步,还有一个全新的海技术要学呢。

He wasn’t good navigator, so it is necessary that the coastline remain in sight as he moved from one harbor to the next.

他不擅海，所以当他从一码头驶到另一码头时，得一直沿海岸线行。

Sophisticated instruments which were to make possible the European voyages of discovery, such as the astrolabe , the quadrant, and good navigational maps, were also developed by Muslims.

复杂的仪器使得欧洲人得以进行海探险,如星盘、象限仪及好的海图都是由穆斯林所发明的。

The discharge of hold-washings and other residues by vessels carrying noxious or corrosive goods must be conducted in compliance with the state provisions for vessel sewage discharge and shall be truthfully recorded in the logbook.

载运有毒、含腐蚀性货物的船舶，排放洗仓水和其他残余物，必须按照国家有关船舶污水排放的规定进行，并如实地记入海日志。