经表面氧化层处理后，焊料表面粗糙度的降低引起低剪切速率下焊膏粘度的明显升高。
After surface oxide film treatment, the increase of viscosities at low shear rates results from the decrease of surface roughness on the surface of solder powders.
结果表明，UHMWPS最显著的流变特征为超高的熔体粘度和低剪切速率下出现不稳定流动。
It was found that the rheological behavior of UHMWPS is remarkably characterized by its unstable flow at low critical shear rate and ultrahigh melt viscosity.
在低频率(或低剪切速率)下，动态剪切测量的复合粘度与稳态剪切测量的剪切粘度是相等的。
The composite viscosity at the condition of dynamic shear test is consistent with shear viscosity at steady shear test at the low shear rate or low frequency.
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