Pillars shall be supported on the double bottom floors or on the web frames on side shellplates.
柱子应支撑在双层底或舷侧的强结构上。
2
The differences of the outer surface ultrastructures of the shellplates among four barnacles are obvious.
本文比较了四种藤壶之间壳板表面的亚显微结构，发现它们有很大的差异。
3
Theprevalence of shell-crushers coincides with the appearance of otherdefenses, too, such as thicker plates and changes in arm branching tominimize arm loss.