短語詞組短語modified branch tearing method 改進(jìn)型支路撕裂法branch synthesis method 支路合成法step branch excavating method 臺階分部開挖方branch set method 廣Improved branch exchange method 改進(jìn)支路交換法branch additional method 支路追加法tree branch matching method 樹枝分叉法standard branch soaking method 標(biāo)準(zhǔn)枝浸水法branch bounding method 分支限界法 返回 branch method