The production technologies of PVA with ultrahigh relative molecular weight mass and high stereo-tacticity were introduced.
介绍了超高相对分子质量和高立构规整度的PVA 制备方法；
A small amount of high molecular weight HDPE was added into relative low molecular weight HDPE under compound stress field to extrude pipe.
将少量相对高分子量的高密度聚乙烯(HDPE)加入到相对低分子量的通用级HDPE中，在复合应力场作用下挤出制成管材。
Kerogens have a high molecular weight relative to bitumen, or soluble organic matter.
相对于沥青质或可溶性有机物而言，干酪根的分子量高。
For 481 experimental data points of 29 hydrocarbons, including high-molecular-weight hydrocarbons, the new method gives a relative average error of 3.2%.
对29种包括大分子的烃类物质，481个实验数据点，本方法的平均相对计算误差为3.2%。
The glass transition temperature of hyperbranched polymers rises with the increase of molecular weight. When the relative molecular mass was high enough it remained the same.
超支化聚合物的玻璃化转变温度随分子量的增加先增大，当分子量足够大时玻璃化转变温度不再受其影响。
The glass transition temperature of hyperbranched polymers rises with the increase of molecular weight. When the relative molecular mass was high enough it remained the same.
超支化聚合物的玻璃化转变温度随分子量的增加先增大，当分子量足够大时玻璃化转变温度不再受其影响。
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