噪声消减 | |
auto. | noise deadening |
小 组委员会 | |
auto. | sub-committee |
小组 委员会 | |
gen. | subcommittee |
小组委员会 | |
gen. | sub-committee |
commer. | panel |
earth.sc. | sub-commission |
| |||
noise deadening | |||
noise reduction |
噪声消减 : 3 phrases in 3 subjects |
Air defense | 1 |
Aviation | 1 |
General | 1 |