操作的错误过度充填是最频繁的起因在这个类别。
Operational error Overfilling is the most frequent cause in this category.
有了适当的排气，射速可以提高，充填和保压可达良好状态，不须过度增加料管和喷嘴的温度。
With proper venting, the injection speed could be increased to achieve good fill and pack conditions, without having to raise the barrel and nozzle heats, improperly.
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