spiral case
| segment
| spiral case | |
| el.mach. | 涡壳 |
| hydroel.st. од. | 蜗壳 |
| segment | |
| entomol. од. | 体节 |
| hydroel.st. | 部分 |
| hydroel.st. од. | 节; 段 |
| math. | 程序段; 片段 |
| met. | 弓形体; 扇形体; 片 |
| |||
| 涡壳水轮机 | |||
| ★ 蜗壳 | |||
| 水轮机蜗壳 | |||
|
spiral case : 31 phrases in 3 subjects |
| Electronics | 1 |
| Hydroelectric power stations | 17 |
| Technology | 13 |