局きょく間かん回かい線せんMeanings1nountrunk; inter-office linecomputing›Technical computing term for a communication line connecting two offices or exchanges.局きょく間かん回かい線せんの帯たい域いきを増ぞう強きょうする必ひつ要ようがある。We need to increase the bandwidth of the inter-office line.
