我之前谈过经度（longitude）和纬度（latitude），它们是用来标度连接两极的经线、以及平行于赤道的纬线的角度单位。
The other day I talked about longitude and latitude which are measured as angles around the equator and toward the poles.
回归分析表明，两种离子的概率单位与浓度对数之间存在着极显著的正相关。
The regression analysis showed that there was significantly positive correlation between probit and logarithm of concentrations.
钾肥的增产效率在两种氮肥水平下都较高，单位钾肥的增产量与土壤有效钾含量及施钾量呈极显著负相关；
The yield increase of K fertilizer was quite high at two rates of nitrogen application, and it closely relative to the content of available K in soil and potassium application rate.
钾肥的增产效率在两种氮肥水平下都较高，单位钾肥的增产量与土壤有效钾含量及施钾量呈极显著负相关；
The yield increase of K fertilizer was quite high at two rates of nitrogen application, and it closely relative to the content of available K in soil and potassium application rate.
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