 |
| |||
| 吊悬屋顶 | |||
| 伪顶位于煤层之上随采随落的极不稳定的薄岩层，厚度一般在0.5m以下 | |||
| 假屋顶; 伪顶; 吊顶; 吊悬屋顶 | |||
| false roof: 1 phrase in 1 subject |
| Technology | 1 |
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