指南针的发明及最终在航海上的应用是一个突破，对人类具有广泛的影响。
The invention of the compass, and eventually, its application in navigation, were breakthroughs of immense importance for mankind.
指南针首先用在航海上。
教堂的鸟类外形也是海上工人们的指南针：翅膀代表东西方向，喙和尾巴象征着南北方向。
The churchs bird-like features are used as a compass to direct sea workers - its wings represent East and West, while its beak and tail symbolise North and South.
因此，这堂课使用的结构标准是美国船舶局(abs)的海上赛艇建造和分类指南，更新于2001年1月1日。
Therefore, the structural standards used for this course are the American Bureau of Shipping (ABS) for Building and Classing Offshore Racing Yachts, updated to January 1, 2001.
因此，这堂课使用的结构标准是美国船舶局(abs)的海上赛艇建造和分类指南，更新于2001年1月1日。
Therefore, the structural standards used for this course are the American Bureau of Shipping (ABS) for Building and Classing Offshore Racing Yachts, updated to January 1, 2001.
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