Proliferation of cells in a ring around the feather germ creates a cylindrical depression, the follicle, at its base.
环绕羽芽有一圈细胞不断增生，在基部形成圆柱状凹陷，称为毛囊。
2
The weight should be of k carats, If the moon is extremely weak causing depression, tensions of acute order than pearl and white sapphire stone in one ring touching the finger should be worn.
The scientists determined that the depression was a volcanic vent, and the bright ring around it was pyroclastic, remnants of lava that had been spewed outward, much like a volcanic fountain on Earth.