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| 步进输入 | |||
| 阶跃输人 | |||
| 阶式信号输入; 分段进水; 阶跃输入; 阶梯输入 | |||
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| 阶跃〔阶梯〕输人 | |||
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step- input : 11 phrases in 7 subjects |
| Automobiles | 1 |
| Electronics | 5 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Space | 1 |
| Technology | 1 |
| Thermal engineering | 1 |
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