海冰的形成导致表水中盐的浓度增加；海冰的减少意味着盐浓度的增加幅度较小。
The formation of sea ice causes the concentration of salt in surface waters to increase; less sea ice would mean a smaller increase in the concentration of salt.
去年，进行抽脂术的人增加了13％，增加幅度是前一年的两倍。
The procedure accounted for 13 per cent of operations last year, double the number seen previously.
用钢量增加幅度最大的是不上人的轻型屋面檩条，提高幅度达22%。
The maximum amount of increasing in weight of steel is 22%for the roof purlins.
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