Reinforcing ribs provide a solid superstructure mount and give the body added strength. Placement of the ribs assures packing chamber support to resist both internal and external stresses.
加固肋提供实心上部结构安装，提高了阀体的强度。加固肋确保填料腔的支撑强度以抵抗来自内部和外部的压力。
Finally, the basic guide principles are given about equal strength design of a certain section and also the whole range of superstructure.
最终给出剖面等强度设计一般的指导性原则，及整个上层建筑范围内的结构设计原则。
For a naval ship with a long strength superstructure and a lot of hatch, it is difficult to evaluate the hull girder's strength by general beam theory because of the complexity of the hull structure.
当舰船设有长度较长但开口较多的上层建筑时，其船体结构的复杂性使船体总强度很难用常规的梁理论方法确定。
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