spinneret的知识精选

“spinneret”可以造什么句,spinneret造句
Manytinytubesconnecteachsilkglandwithaspinneret.Usuallythenumberofholesinthespinneretdeterminesthenumberoffilamentintheyarn.“Butifyoulookatasilkworm,itonlyhasonekindofspinneret,”sheadded.Shineandfla...
热门标签