welded hollow spherical joint的意思|示意
美 / /
英 / /
焊接空心球节点
welded hollow spherical joint的网络常见释义
焊接空心球节点 spherical type universal joint 球形万向接头 welded hollow spherical joint 焊接空心球节点 spherical artificial knee joint 球形人工膝关节 ..