剩餘放射性

residual radioactivity

to remain / to be left / to have as remainder

remainder / surplus

extra / surplus / remaining / remainder after division / (following numerical value) or more / in excess of (some number) / residue (math.) / after / I / me

surname Yu

variant of 餘|余[yu2], remainder

to put / to place / to release / to free / to let go / to let out / to set off (fireworks)

to radiate / radioactive

old variant of 射[she4]

to shoot / to launch / to allude to / radio- (chemistry)

radioactive

nature / character / property / quality / attribute / sexuality / sex / gender / suffix forming adjective from verb / suffix forming noun from adjective, corresponding to -ness or -ity / essence / CL:個|个[ge4]