surface circulation meaning in Chinese

地面循环
海面环流

The simulated scs surface circulation is generally cyclonic ( anticyclonic ) during the winter ( summer ) monsoon period with a strong western boundary current . the surface circulation in spring and in fall possesses transitional characters between summertime and wintertime
模拟结果给出了南海环流的基本特征：西边界流、南海暖流、冬季(夏季)海盆尺度的气旋(反气旋)式环流。