When long-distance pipeline is located at the saliferous soil, the differentialconcentration of salt will speed up corrosion of pipeline.
长输管道在通过盐渍区土壤时，土壤的盐浓度差异会使处于高盐浓度土壤中的管道加速腐蚀。
2
AIM: by means of Differential Display analyzed the effect of estradiol by concentration of physiological on gene expression of the bone marrow macrophage.
目的：利用差异显示法，分析生理浓度下雌二醇对小鼠骨髓巨噬细胞基因表达的影响。
3
There is a concentrationdifferential junction under the electrode-site.