| |||
X-ray; Rontgen ray | |||
roentgen-ray | |||
roentgen ray | |||
roentgen rays | |||
X-rays; Rontgen; roentgen | |||
| |||
Roentgen ray | |||
| |||
roentgen |
伦琴 射 线 : 69 phrases in 7 subjects |
Agriculture | 2 |
Earth sciences | 1 |
Electronics | 4 |
General | 5 |
Metallurgy | 32 |
Oil / petroleum | 9 |
Technology | 16 |