shell steels meaning in English

（锥形磨浆机）底刀

The constructing technique , of the 160 ? meter diameter welding ball junction double - deck net shell steel structure roofing , of which is in the leading position in china
160米直径焊接球结点双层网壳钢结构屋面施工技术在国内处于领先地位。
At present , the steel structure which has been completed at the moment , it has the biggest span in domestic by adopting a rotund ( diameter : 160 meters ) , welding ball junction double - deck net shell steel structure roofing system
目前已完成的钢结构是目前国内跨度最大的采用圆型（直径为160米）焊接球结点双层网壳钢结构屋面系统。
Third , a theoretic approach based on total theory of plasticity is for the first time applied to analyze elastoplastic torsion rigidity of the tubular , and the results are well proved by the test data . also for the first time , the plastic stability of the spiral skew stiffening shell is studied . it is shown in the experiments that there is the comparability between the stability of the members at plastic limit and that of the thin - shelled steel tubular with the spiral skew stiffening concrete rib
本文首次分析了扭转作用下的螺旋斜向加劲壳的塑性稳定性问题，还根据试验观象的观察，对构件在塑性极限时的状态，简化为内壁衬朽螺协刹向加劲混凝土肋的薄壁钢管的塑性稳定问题，利用塑性壳体稳定理论进行了探讨。