periodaten.高碘酸盐
periodn.一段时间;周期;时期;课时;学时;句号;月经
period of fermentation发酵周期
periodontal anesthesia牙周麻醉
periodontal traumatism牙周创伤
periodontal gingivitis牙周龈炎
periodontal remodeling牙周改建
periodontal prosthesis牙周病矫形治疗
period of S.H.M.简谐运动周期
Period ofclinic attack间歇期
period of acceleration加速时间
period of shoot emerge出笋期