couple: n.1.一对，一双。2.配偶，夫妇，未婚夫妻，一对舞伴。3.〔口语〕交媾；【物理学】力偶；电偶；【天文学】联星。4.〔口语〕(少数)几个，两三个。短语和例子an old couple老两口儿。 a married couple夫妇。 a pack of 20 couple二十对的一群猎犬。 a thermo-electric couple温差电偶。 a couple of
The results show that the antipunching shear bearing capacity and ductility of frame column underpin system are improved by installing coupling bar at the interface of the new - to - old concrete and enlarging the reinforcing bars at the centre and upper position in the underpinning beam 结果表明：设置新老混凝土界面连接钢筋和增大托换梁中部和上部配筋可提高框架柱托换体系的抗冲剪承载力和延性。
