 |
| |||
| impact threshold (指沙粒在跃移沙粒的冲击作用下才得以起动的临界风速) | |||
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips