熄灭的放射性核素曾在地球上存在过,但现已衰变完而消灭
extinct radionuclide
熄灭的
dead; extinct; out
无放射性原子
dark atom
熄灭
quench; die out; crush out; extinguish; slake; wink
extinction
quenching
熄灭灯火
black out
熄灭电位
extinction potential
熄灭电压
extinction voltage
无的放矢
shoot at random
辖免的放弃
waiver of exemption
稳定核素
stable nuclide
细胞核素
cell nuclein
微粒放射
corpuscular radiation
韦尼克氏放射
Wernicke's radiation
显微放射照片术
microradiogram
显微放射照相
microradiography
显微放射照相的
microradiographic
线形放射活动度
linear activity
熄
extinguish; put out
熄弧磁铁
blowout magnet
熄弧线圈
blowout coil