habitat
发表于 2025-3-28 16:12:22
http://reply.papertrans.cn/32/3183/318268/318268_41.png
GUISE
发表于 2025-3-28 20:15:49
s as plastics, fibres, rubbers and other materials. The chain molecules may be simple linear structures or they may be branched or cross-linked. During the past decade, sharp fractions of the first synthetic cyclic polymer have been prepared. These fractions of cyclic poly(dimethyl siloxane) consis
CAND
发表于 2025-3-29 02:25:01
Design and Assurance for Reliability and Maintainabilitymental to Reliability Engineering. This chapter will outline the activities and techniques which can be used both in design, to develop equipment which can meet the R and M objectives and also in manufacture and use, to minimise failures.
ABYSS
发表于 2025-3-29 04:23:08
http://reply.papertrans.cn/32/3183/318268/318268_44.png