expa ion and contraction joint的意思|示意
美 / /
英 / /
伸缩关节
expa ion and contraction joint的网络常见释义
伸缩缝 contraction joint,contraction joint 收缩缝 ; 收缩节理 expa ion and contraction joint 伸缩缝 submerged-type contraction joint 暗收缩缝 ..