它们可能是可溶的或不可溶的，也可以是高或低粘度的。
They may be soluble or insoluble, and they may produce high or low viscosities.
采用逐步升高真空度的方法合成了低粘度的聚酯多元醇。
The low viscosity polyether polyol was synthesized under raising the vaccum degree step by step .
采用细曲轴及平面滚动轴承技术及较低粘度的冷冻油以提高机械效率。
Applying the slender crankshaft, the level rolling bearing technology, and lower viscosity refrigeration oil, increased the mechanical efficiency.
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