发射前准备 | |
corp.gov. | dry run |
阶段 | |
geol. | estate; region |
hydroel.st. | phase; stage; step |
manag. | plane |
met. | period |
space | generation |
| |||
dry run | |||
launching preparation |
发射前准备 : 7 phrases in 4 subjects |
Aviation | 2 |
Electronics | 1 |
Space | 3 |
Technology | 1 |