variable-density record
| section
| variable-density record abbr. | |
| tech. | 变密度记录 |
| section abbr. | |
| gen. | 栏目; 环节; 部 |
| book.bind. | 配页 |
| hydroel.st. | 节 |
| met. | 区段; 工段 |
| roll. | 轧材 |
| tech. | 部分 |
| |||
| 变密度记录 | |||
|
variable-density record : 4 phrases in 2 subjects |
| Oil / petroleum | 1 |
| Technology | 3 |