季风洋流
jì fēnɡ yánɡ liú
- 名monsoon current
季风洋流-
事实上，相对地震，季风和洋流对一天时间长短的影响更大。
In fact , winds and oceans currents have an even bigger effect on the length of the day than this earthquake did .
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提要：在蒸汽机发明之前的风帆时代，庞大的郑和船队必须依赖季风和洋流的帮助才能顺利航行。
In the " Era of Sailboat " when steam engine had not been invented , Zheng He 's largescale fleet had to rely on monsoon and ocean current to navigate smoothly .