The swell factor tends to decrease if the cross section of die crown is large, the die round R is small, the runner is large, the dumping temperature is high and the extrusion speed is low;

口型的冠部截面大、口型圆角R小、流胶口大，排胶温度高，挤出速度慢，则膨胀因数小；

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The low blood hefts also to cause by following factor: Although the liver disease, the nephrosis, swell slide, many medicine functions, the long time strenuous exercise, to drink have sprinkled.

低血掂也由下列因素引起：肝病、肾病、肿溜、许多药物的作用、长时间剧烈运动、喝洒过虽。

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Study on smectite content and the indices for discrimination swell potential indicates that smectite content is a principal factor controlling the swell potential.

蒙皂石含量与各种膨胀势判别指标研究表明，蒙皂石含量是各种膨胀势的主要控制因素。

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