On the coating processing, the surface of basal body is purified and rough treated, so the bonding strength of film and basal body increases greatly.
在涂敷工艺上，对基体表面进行净化和粗糙处理，大大提高了膜与基体的结合强度。
2
C... and in this condition, uniform, harder and tighter with the basal body of the sample can be gained. Moreover, more time, thicker film, but less hardness.