基本解释混凝土同根派生 conorete相关词英汉例句CALCULATION AND ANALYSIS FOR ULTIMATE RESISTANCE OF REINFORCED CONORETE SLABS WITH OPENING 開洞鋼筋混凝土板極限承載力的塑性簡化分析steel reinforced conorete 鋼筋混凝土conorete更多例句