As I speak about appreciation , I use this quote by Albert Schweitzer .
综合介绍德国第15届阿尔贝特凯尔电接触研讨会报导的真空触头材料最新的研究进展。
This paper is a comprehensive introduction of the recent developments of contact materials reported during " 15 Fachtagung Albert-Keil-Kontaktseminar " .