The recent development of electronic ceramics, including insulatingceramics, dielectrics, piezoelectric ceramics, PTC ceramics, and magnetic ceramics, were critically reviewed.
对电子陶瓷（包括绝缘瓷、电介质、压电瓷、PTC瓷、磁性瓷等）的最近进展进行了综合评述。
2
A new technique of electric discharge (Ed) milling insulating engineering ceramics has been recently developed by the authors.
绝缘工程陶瓷电火花铣削技术是作者开发出的一种新型加工技术。
3
Ceramics with graded pores possess the unique advantages of porous ceramics and functional gradient ceramics, which can be applied as thermal-insulating materials, filter materials and bio-materials.