如果螺栓无法拆卸，将使用一种专门设计的工具把上下法兰盘撬开。
If not, a specially designed tool will be used to pry apart the top and bottom flanges.
弯头应该用螺栓固定在湿井地面，并且设计成具有不需要任何螺栓、螺母或皮带即可连接泵设备的连接法兰的能力。
The elbow shall be bolted to the floor of the wet-well and be so designed as to receive the pump connecting flange without the need for any bolts, nuts or clamps.
本文以强度可靠度为约束，对法兰螺栓联接进行了优化设计。
In this paper presents optimum design of flange bolt connection with constraint of strength reliability.
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