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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This technique is also used to separate sections of rhizomes which have no pitchers: when re-potted, the section usually generates a new crown of pitchers.

这个方法也可用于不会分化成瓶子的生长点：将不会分化成瓶子的生长点与成株分离，这些生长点常会形成新的瓶子生长点。

youdao

This technique is also used to separate sections of rhizomes which have no pitchers: when re-potted, the section usually generates a new crown of pitchers.

这个方法也可用于不会分化成瓶子的生长点：将不会分化成瓶子的生长点与成株分离，这些生长点常会形成新的瓶子生长点。

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