average thickness
| method
| average thickness | |
| wind. | 平均厚度 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 平均厚度 | |||
|
average thickness : 14 phrases in 5 subjects |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Mining | 2 |
| Oil / petroleum | 1 |
| Technology | 9 |