During microdermabrasion, fine crystals usually remove the superficial or uppermost layer of the epidermis, known as the stratum corneum.

在微程中，微体能消除表上面的或者凸起的位被称为角质层。

Phosphorous Pentoxide(P 2 O 5 ) ?P 2 O 5 is a kind of light white minicrystal powder which is made by burning phosphorus with excess oxygen.

五化二磷（ P 2 O 5 ） ·五化二磷是在气存在下燃烧元素磷得到的白色、微体轻质粉末。