双语例句
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All nozzle flange and girth flange bolts shall be of stud bolt type.
所有设备口法兰及翼缘法兰螺栓应为双头螺栓。
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When a bolt is not to play in a large flange bolt hole welding place.
在打螺栓孔的时候是不可以把螺栓孔打在有大型法兰焊口的地方的。
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Valves can also be furnished with flange bolt holes drilled for through bolting, except in the chest area.
阀门也可以配置法兰螺栓孔，用于贯穿式螺栓，但不能穿过阀腔区域。
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