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| S形管; 双弯形; S形; 反弧形［溢流面曲线］; 双弯管 | |||
| S 形曲线; S 曲线 | |||
| S曲线 | |||
| S形曲线 | |||
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| Ｊ形曲线 | |||
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образная кривая : 5 phrases in 3 subjects |
| Electronics | 3 |
| Mathematics | 1 |
| Statistics | 1 |
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