A smaller hit ratio indicates that the pckcachesz parameter should be increased.
较小的命中率表明应该增大参数pckcachesz。
The results showed to produce product with perfect appearance and property, modifications of screw, processing parameter, parison design and stretch ratio should be made.
结果表明为了得到理想的制品外观和性能，需要对挤出螺杆、加工工艺参数、型坯设计和拉伸比进行改进。
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