outer casing

Visual and microcosmic analyses on the fracture of absorber spline outer canister for oil drilling stem(spline outer canister for short) were performed.

为查明某油田断裂的石油钻柱减震器花键体外筒的断裂原因,对其断口进行了宏观和微观分析,对断裂的花键体外筒材质进行了分析,对钻柱减震器的受力状态和主要结构进行了分析。

Some conclusions are given by analyzing and comparing annular sizes by means of numerical simula.

其内外筒间隙、导弹发动机喷口与筒底的距离、导流锥的高度与型面半径、底板的形状与尺寸等参数都会对筒内流场产生影响。