reduced span of cave for underground hydropower house
释义
reduced span of cave for underground hydropower house地下水力厂房硐室缩减跨距reduced span of cave for underground hydropower house地下水力廠房硐室縮減跨距電機工程reduced span of cave for underground hydropower house地下水力廠房硐室縮減跨距電力學名詞—兩岸電力學名詞