螺旋曲面

spiral surface

spiral shell / snail / conch

spiral / helix / screw

to revolve / a loop / a circle

to whirl / immediately / variant of 鏇|镟[xuan4]

surname Qu

bent / crooked / wrong

tune / song / CL:支[zhi1]

variant of 麴|曲[qu1]

yeast / Aspergillus (includes many common molds) / Taiwan pr. [qu2]

curved surface / surface

face / side / surface / aspect / top / classifier for objects with flat surfaces such as drums, mirrors, flags etc

variant of 麵|面[mian4]

flour / noodles / (of food) soft (not crunchy) / (slang) (of a person) ineffectual / spineless