汉译英--指南针的发明

题目

汉译英--指南针的发明
在指南针发明之前 人类辨别方向主要靠太阳,月亮等天体,或者山石树木等标志物,然而,这些辨别方向的手段都有其局限性:靠天体辨别方向 在恶劣的天气环境下就无法实现,比如雨天,雾天,阴天.而靠标志物辨别方向 只能局限于小的范围内.
后来 人们发现磁石的南北极特性而发明了指南针.从而可以在任何环境下准确的辨别方向.
指南针最大的贡献是促进了航海的发展,海上运输的发达以及发现新大陆等指南针都功不可没.

答案

Before the invention of the compass direction depends mainly on human identify the sun,the moon and other celestial bodies,such as trees or rocks markers,however,the direction of these means of identification has its limitations:rely on celestial bodies to identify the direction in bad weather environment can not be achieved,for example,rain,fog,overcast sky.markers to identify and rely on the direction limited to a small range.
Later,people discovered the North-South magnetic properties very invented the compass.Thus can be in any environment under the direction of accurate identification.
Compass greatest contribution is to promote the development of the maritime and maritime transport developed,such as the compass and the discovery of the New World are功不可没.