straight-through joint box 直通式接线箱
through joint box
直通接头箱
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Through the wire joint pipe should be located in the junction box, the lap joint should be solid, insulating tape wrapping should be uniform and compact.
穿入配管导线的接头应设在接线盒内，接头搭接应牢固，绝缘带包缠应均匀紧密。
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