serum spread factor血清: serum; blood serum铺展: spread out; sprawl因子: divisor; factor; determiner; ...进展因子: progression factor扩展因子: expansion factor下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:血清铺展因子，即可在微信中查询翻译
