| |||
| 蜗旋状外壳 | |||
| 蜗壳水轮机的 | |||
| 蜗壳 | |||
| 螺旋形箱; 涡壳 (水轮机) | |||
|
scroll case : 19 phrases in 4 subjects |
| Ecology | 2 |
| Electronics | 1 |
| Hydroelectric power stations | 7 |
| Technology | 9 |
| |||
| 蜗旋状外壳 | |||
| 蜗壳水轮机的 | |||
| 蜗壳 | |||
| 螺旋形箱; 涡壳 (水轮机) | |||
|
scroll case : 19 phrases in 4 subjects |
| Ecology | 2 |
| Electronics | 1 |
| Hydroelectric power stations | 7 |
| Technology | 9 |