春分: spring equinox

分光: a spectrum / 分校: a branch school, a satellite campus / 文公: Duke Wen of Jin (晋文公, Jìn Wén Gōng, 697–628 BCE), a leader of the kingdom of Jin (晉 / 晋) during China's Spring and Autumn Period

分光: to divide light into a spectrum / 聞香: to smell a fragrance

節分: The last day of winter in the traditional Japanese calendar.

細分化: segmentation, subdivision

細分化: to subdivide

分担: apportionment, allotment, division

分担: to apportion, to allot, to divide, to share work, duties, responsibilities, etc.

成文化: codification, the act of putting something into writing (said particularly of rules or decisions)

成文化: to codify, to put something into writing (said particularly of rules or decisions)