Exudate : extravascular fluid collection that is rich in protein and / or cells . fluid appears grossly cloudy 渗出：渗出液中富含蛋白和/或细胞。渗出液较混浑。
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Transudate : extravascular fluid collection that is basically an ultrafiltrate of plasma with little protein and few or no cells . fluid appears grossly clear 漏出：属于血浆的超滤液，含有少量蛋白，极少量细胞，液体澄清。
