有环的,有环纹的;
Finally, the weight, the strength and the stability of the domed bulkhead with nonaxisymmetry sphere-conical transitional annulated shell of some middle-size submarine before and after optimization have been contrasted with examples.
最后用某中型艇的非轴对称球锥过渡环壳的球面舱壁进行实例分析,对比优化前后球面舱壁的重量值及强度与稳定性性能。
Design and Study of Dynamic Foundation of Annulated Column Which Sustains the Amplitude Airship in the Happy Valley in Beijing
北京欢乐谷聚能飞船圆环柱动力基础设计研究
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