 |
| |||
| 表面掺碳硬化; 表面渗碳硬化 | |||
| 表面掺碳硬化的 | |||
| harden case: 14 phrases in 8 subjects |
| Automobiles | 2 |
| Aviation | 1 |
| Earth sciences | 1 |
| Fish farming pisciculture | 1 |
| General | 3 |
| Mechanics | 1 |
| Metallurgy | 3 |
| Technology | 2 |
|
| |||
| 表面掺碳硬化; 表面渗碳硬化 | |||
| 表面掺碳硬化的 | |||
| harden case: 14 phrases in 8 subjects |
| Automobiles | 2 |
| Aviation | 1 |
| Earth sciences | 1 |
| Fish farming pisciculture | 1 |
| General | 3 |
| Mechanics | 1 |
| Metallurgy | 3 |
| Technology | 2 |