放射生成物

radiogenic material

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)

to be born / to give birth / life / to grow / raw / uncooked / student

to generate / to produce / generated / produced

surname Cheng

to succeed / to finish / to complete / to accomplish / to become / to turn into / to be all right / OK! / one tenth

thing / object / matter / abbr. for physics 物理