视准 线 | |
tech. | line of collimation |
视准线 | |
bridg.constr. | line of collimation |
hydroel.st. | observing line; observation line; sight |
ABC法 | |
UN AIDS. | ABC approach; Abstain, Be faithful, use a Condom |
视准线 : 12 phrases in 6 subjects |
Electronics | 2 |
General | 1 |
Information technology | 1 |
Space | 1 |
Technology | 6 |
Telecommunications | 1 |