 |
| |||
| 块石垢工; 预制混凝土块砌体; 空心混凝土砖砌体 | |||
| 铁路线路闭塞工程; 线路中断; 线路闭塞 | |||
| 整只操作皮革 | |||
| 块体结构 | |||
| block work: 17 phrases in 6 subjects |
| Automobiles | 1 |
| Bridge construction | 1 |
| Electronics | 6 |
| Information technology | 1 |
| Steel production | 1 |
| Technology | 7 |
|
| |||
| 块石垢工; 预制混凝土块砌体; 空心混凝土砖砌体 | |||
| 铁路线路闭塞工程; 线路中断; 线路闭塞 | |||
| 整只操作皮革 | |||
| 块体结构 | |||
| block work: 17 phrases in 6 subjects |
| Automobiles | 1 |
| Bridge construction | 1 |
| Electronics | 6 |
| Information technology | 1 |
| Steel production | 1 |
| Technology | 7 |