Results show: unbonded prestressed floorslab and unbonded prestressed hollow floorslab used in large-span structure is more economic and reasonable.是什么意思_Results show: unbonded prestressed floorslab and unbonded prestressed hollow floorslab used in large-span structure is more economic and reasonable.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句