衰变曲线

decay curves

mourning garments

to decline / to wane / to become weak or feeble

radioactive decay

to change / to become different / to transform / to vary / rebellion

surname Qu

bent / crooked / wrong

tune / song / CL:支[zhi1]

variant of 麴|曲[qu1]

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

curve / curved line / indirect / in a roundabout way

variant of 線|线[xian4]

thread / string / wire / line / CL:條|条[tiao2],股[gu3],根[gen1] / (after a number) tier (unofficial ranking of a Chinese city)