spiral dipping vessel 螺旋浸取器
The leaf powder movie-making, may observe the glandular hair, the non-glandular hair(2~6 cells)and the spiral vessel;
地黄叶粉末制片，可观察到腺毛、非腺毛（2～6个细胞不等）及螺纹导管；
Based on netting theory, linear equations for the single spiral, spiral and hoop filament wound toroidal pressure vessel were obtained.
基于网络理论，得到了纤维单螺旋、螺旋加环向均衡型缠绕圆环压力容器的线型方程。
According to the maximum stress strength criterion, the burst pressure formula for the single spiral and the spiral with hoop filament-wound toroidal pressure vessel were obtained.
利用最大应力强度准则，得到了单一螺旋缠绕及螺旋加环向缠绕圆环压力容器爆破压强的计算式。
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