本文将反应堆压力壳的球顶盖、上下法兰、螺栓、筒体及双道O形环作为一个超静定系统进行了应力和变形分析。
The reactor pressure vessel composed of spherical top and lower heads, upper and lower flanges, bolts, cylinder and two O-rings, as a static indeterminate system has been studied.
当采用双环入渗法和环刀法测定土壤的饱和渗透系数时，土壤剖面土壤水压力势分布规律不同。
The distribution law of pressure potential in saturated soil using two-ring infiltration method to determine the permeability coefficient was different to that using cutting ring method.
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