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Fittings or splices shall not be permitted in any span that exceeds the normal span interval.
在任何超过一般跨距间隔的跨距中不得使用管件或接头。
youdao
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Fittings or splices shall not be permitted in any span that exceeds the normal span interval.
在任何超过一般跨距间隔的跨距中不得使用管件或接头。
youdao