摘要：Classification of 3D bioprinting As we mentioned in the last editorial,3D printing,also known as additive manufacturing,could be considered as the reverse process of potato cutting,automatically assembling sliced potato,shredded potato,diced potato to integrity[1].Generally speaking,cell-laden 3D bioprinting can be classified into three types:extrusion-based,droplet-based and photocuring-based bioprinting according to different printing ***-based bioprinting squeezes out continuous hydrogel fibers to set up structures;dropletbased bioprinting generates droplets as the basic unit for biofabrication;and photocuring-based bioprinting utilizes the characteristics of light-sensitive materials,to stack 3D models *** bioprinting approaches own diverse characteristics facing various scenarios and have specific requirements for bioinks.

摘要：探讨了数字化纺纱工厂的设计理念和应用实践。分析了棉纺厂设备自动化、智能化的应用程度以及管控现状,阐述了建立棉纺企业智能管控系统的必要性。以我集团在新疆新建的现代化数字工厂为例,介绍了智能管控系统的功能与优势,并对使用效果进行了总结和分析。认为:现代数字化工厂两大特点是工业实时网络和大数据平台,如何用好、用实是设计和实施的关键。

摘要：阐述了干式空心电抗器绝缘龟裂问题的现象、技术原因和解决办法,介绍一种能彻底解决该问题的设计思想和产品技术特征。