[=median effective concentration]中间有效浓度
[=medical examination center]
体检中心[=middle ear canals]
中耳道
[=middle ear cavity]中耳腔
[=minimal effective concentration]最低有效浓度
[=minimal erythemal concentration]最小红斑浓度
[=minimum effective drug concentration]最小有效浓度
[=mouse embryonal fibroblast cell]小鼠
胚胎成纤维细胞[=multinucleate epidermal cells]
多核表皮细胞