请问这句怎么翻译? pscs obtained from silky fowl feet using four acid extractions exhibited melanin content; 有四种酸作为萃取剂时,在乌骨鸡脚中萃取得到的 psc 中显示有黑色素存在 whereas no similar observations were found in that of broiler feet by acetic acid extraction (fb). 然而在使用醋酸萃取烤乌骨鸡脚时没有发现相似的现象 broiler feet 的意思不是很确定,需要 lz 结合上下文看下 查看更多