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| 21. | =====中国的古人根据太阳在两个冬至日之间的运行情况划定出一年；根据月亮圆而后缺，再由缺复圆的时间划分出12个月。 |
| The ancient Chinese started their calendar year in winter. Using the cycle of the moon, its waxing and waning, they devised the12 months-moons--of the year. |
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| 22. | operating ambient |
| 运行环境 |
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| 23. | full circulating operation |
| 大循环运行 |
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| 24. | Devices are normally disabled if they are not working properly or causing a resource conflict. You cannot use a device when it is disabled. |
| 如果运行不正常或者造成资源冲突，设备通常会被停用。设备被停用时，不能使用。 |
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| 25. | Such measures are frequently expensive, and inconvenient and they constitute an undesirable limitation on operating flexibility. |
| 这样的措施通常代价昂贵并不方便,且对运行的灵活性构成不必要的限制。 |
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| 26. | Advisory Committee for Operational Hydrology |
| 运行水文学咨询委员会（运行水文咨委会） |
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| 27. | trouble-free operation |
| 无干扰运行;连续工作;顺利运行 |
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| 28. | exploratory run |
| 探索性运行 |
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| 29. | 3、 屏蔽层在零序工作状态下的电抗值低，有利于新型短路自动保护设备的应用，有利于电缆及其相关设备的安全运行。 |
| The reactance of the shield in the zero sequence state is low, which is helpful for the application of new type automatic protecting equipment with short circuit, and the safe running of the cable and other relative equipment. |
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| 30. | generator operation |
| 发电机运行 |
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