还有部分管线由于腐蚀结垢，沿程阻力增大。
Erosion and scale deposit in partial pipelines made more on-way resistance.
但是到了2003年，在我开始针对越来越多的国内科学家时，阻力增大了。
But in 2003, when I began to target more domestic scientists, the resistance grew.
流体阻力损失增大。
如果电线的直径更小，它的阻力会增大。
Were the diameter of a wire smaller, its resistance would be increased.
而伴随着孔隙率的减小，其流动阻力逐渐增大。
The pressure drop is increasing with fill porosity decrease.
而伴随着孔隙率的减小，其流动阻力逐渐增大。
The pressure drop is increasing with fill porosity decrease.
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