permil千分率(‰)
permn.电烫发v.电烫(头发)
permeability seepage disasters渗流灾害
permeability reducing admixture减渗外加剂
permeation of underground water地下水渗流
permeability resisting concrete抗渗混凝土
permeation and leakage of water渗漏水
permeability factor of dilution稀释透过性因子
permeative pathological changes弥漫性病变
permeatility factor of dilution稀释通透性因子
permanganate composite chemical高锰酸盐复合药刑