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| 幼雏期雏鸡8周龄以内(有时5周龄以内)为育雏期，其后为中雏期，然后为产蛋期 | |||
| 发动机起动持续时间 | |||
| 启动周期 | |||
| 育雏期; 幼雏期 | |||
| 启动时间; 开始时间; 起始时间; 启动期 | |||
| starting period: 4 phrases in 2 subjects |
| Electric machinery | 1 |
| Electronics | 3 |
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