灰岩 | |
avia. | plume structure |
geol. | limestone |
hydroel.st. | limestone |
钍 | |
chem. | Thorium |
earth.sc. | thorium |
space | thorium |
钍 A | |
earth.sc. | thorium A |
钍 B | |
earth.sc. | thorium B |
钍-230 | |
met. | ionium |
值 | |
gen. | be on duty |
| |||
plume structure | |||
limestone | |||
calcareous rock | |||
| |||
limestone |
灰岩 : 1484 phrases in 26 subjects |