file hardness
| testing
| file hardness | |
| archit. | 锉刀硬度 |
| auto. | 锉刀级 硬度 |
| met. | 锉刀 硬度; 标锉硬度 |
| testing | |
| econ. | 检测 |
| fin. | 试査 |
| hydroel.st. | 检验; 试验; 检定 |
| met. | 研究; 测定 |
| mining. | 试油 |
| oil | 试井 |
| racing | 试车 |
| |||
| 锉刀硬度 (用锉刀定级的硬度) | |||
| 锉刀级不低于锉刀的硬度 | |||
| 锉刀检验硬度; 标锉硬度 (使用标准锉刀标定的硬度) | |||
| 锉试硬度; 锉刀硬度 | |||
|
file hardness : 3 phrases in 2 subjects |
| Metallurgy | 2 |
| Mining | 1 |