noun
数据来源：WordNet
The results show that the optimal bottle performance requires modified screw , processing parameter , parison design and stretch ratio .
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。
bottle screwbottle screwbottle screw