Photo type may be divided into four categories as followed: Black &White Print (B&WP), Color Print (CP), Transparency (T) and Digital Image (D).Codes can be used while filling in the forms.

• 照片种类由以下四类构成:黑白照片(B&WP)；彩色照片(CP)；正片(T)和数码影像(D).；表格可以使用类别代码填写