缩影照片
microphotograph
体层照片
laminagram; laminogram; stratigram
透照片
diascope
涂钍灯丝
thoriated filament
涂钍钨丝极
thoriated emitter; thoriated tungsten filament
涂钍阴极
thoriated cathode
钍
thorium
Th; thorium
钍D
D thorium
钍TH
thorium
钍X
X thorium
钍后元素
transthorium element
钍矿
thorite
钍射气
thoron
thoron
thorium emanation; thoron
钍试剂
thorin
钍铈混合造影剂
actinophor
钍衰变系
thorium decay series
钍系元素
thorides
缩影X线照相术
miniature roentgenography
胎儿X线照相术
fetography
探照灯
searchlight
anti-aircraft search light