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| 21. | connection strip, electrical, of plastic insulating material, not fittd with their terminals |
| 电线接头条板,塑料绝缘材料制,未装接头 |
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| 22. | valve should be installed vertically, before the use should check whether the push rod is flexible, electrical |
| 本阀垂直安装，使用前应检查推杆是否灵活，电气安装连接是否正确。 |
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| 23. | The copper brush wire is designed for flexinle connection of electrical machinery, electrical apparatus |
| 铜电刷线是用于电机、器及仪表线路上联接用的软联接线。 |
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