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31. | pressure-operated switch |
| 压力操纵开关;压力作用开关 |
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32. | air break switch |
| 空气开关空气断路开关 |
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33. | release; switch |
| 开关 |
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34. | release(a switch or catch);operate(a mechanism)by doing this |
| 松开(开关);(松开开关)开动(机器) |
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35. | pole mounted switch |
| 架空安装开关|杆上开关|极柱式开关 |
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36. | pneumo-oil switch |
| 气动油压开关;气动油压开关 |
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37. | tape feed switch |
| 磁带馈送开关|卷带开关 |
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38. | still adjust SW |
| 静止图像调整开关;静止图像调整开关 |
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39. | on-off thermostat |
| 自动调温开关|开关调温器 |
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40. | field discharge switch |
| 消磁开关励磁放电开关 |
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