The influence of such factors as temperature. pressure and molds on the product quality in the molding process of PET blowing bottle was inquired.
探讨了PET吹塑瓶成型工艺中温度、压力及模具等因素对制品质量的影响。
Living things such as bacteria, molds, viruses and parasites that cannot be seen with the unassisted human eye.
无仪器辅助情况下,肉眼不可观测到的活体生物,如细菌,霉菌,病毒或寄生物等。
Preserved remnants of plants or animals, such as skeletons, shells, casts or molds, tracks or borings, and feces.
植物或动物所保存下来的遗体,如骨骼、壳体、铸型和印模,遗迹或洞穴以及排泄物。
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