外根鞘 meaning in English

external root sheach
external root sheath
outer root sheath
outer root-sheath

The growth of the second follicle is vary by season . in autumn and winter , the speed of the growth of the second follicle is quick . in summer , that of the growth of the second follicle is slow . lt is same as the growth of cashmere . the weight of prolactin receptor is 87kd and 71 kd . the qualitity of prolactin receptor . is vary by season
Westernblotting结果显示催乳素受体蛋白的分子量有87kd和71kd二种；催乳素受体蛋白的含量变化与绒纤维的生长情况呈正相关。原位杂交结果表明催乳素受体mrna分布在毛囊的外根鞘、内根鞘。