对海洋年龄的估计是通过以海洋中的总含盐量除以每年盐的增长率得出的。
An estimate of the age of the ocean was obtained by diving the total salt in the ocean by the rate of salt added each year.
去年，早餐麦片的含盐量只是平均购物篮中所买食物总含盐量的2.7%，低于牛奶(4.8%)、新鲜肉类(6.2%)及面包(9%)。
Last year, breakfast cereal was only 2.7% of the salt in the average shopping basket, lower than milk (4.8%), fresh meat (6.2%) and bread (9%).
美国人摄入了更多热量，他们或许会放弃一些含盐量更高的食品，好让总食盐消耗量维持正常水平。
As Americans ate more calories, they could have eased up on some of the saltier choices so that their overall sodium consumption remained constant.
土壤含盐量是随质地和滩面水的总盐量的变化而不同，如潮滩沙土由小于0.5%至3.3%。
The salinity of soils varies greatly with texture of soils and total salinity of seawater and ranges from< 0.5% (sandy tidal flat soil)to 3.3%.
含盐量是指土壤溶液中所存在的盐类的总浓度。
Salinity refers to the total concentration of salts present in the soil solution.
含盐量是指土壤溶液中所存在的盐类的总浓度。
Salinity refers to the total concentration of salts present in the soil solution.
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