型号认可证 | |
avia. | validation of type certificate; verification of type certificate |
书 | |
gen. | books; book; bookery |
econ. | letter |
environ. | book |
libr. | fore-edge painting; fore-edge title |
| |||
validation of type certificate; verification of type certificate |
型号认可证 : 5 phrases in 2 subjects |
Aviation | 4 |
China | 1 |