In condensation polymerization, the monomer will affect the purity of the molar ratio of functional groups, so that the molecular weight deviates from the set value.
在缩合聚合中，单体的纯度会影响到官能团的摩尔比，从而使聚合物的分子量偏离设定值。
It is proved that gas instantaneous water heater with condensation has pretty practical value.
试验结果表明冷凝式燃气快速热水器有很好的实用价值。
Experiment results show that the natural gas instantaneous water heater with condensation has a high practical value.
试验结果表明冷凝式天然气快速热水器有很好的实用价值。
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