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.
如果是应用在钢法兰晌，可能需要更长的螺栓或双头螺栓。
When bolting to steel flanges, longer bolts or stud may be required.
所有设备口法兰及翼缘法兰螺栓应为双头螺栓。
All nozzle flange and girth flange bolts shall be of stud bolt type.
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