词汇	frictional factor
释义	frictional factor 摩擦因数
随便看	human primates Human Principal Parasites human principle Human priority human PRL human problem solver human problem solving human problem solving skill human problem-solving task analysis human process human processes human process technique human production human progesterone receptor B isoform Human progesterone receptor isoforms Human pro-insulin human projection Human Projects,Visible Human Project,Visible human prolactin human prolactin pituitory adenoma human promyelocytic leukemiacells human promyelocytic leukemia cells human propagation human property