请教这句怎么翻译,关于螺栓? stud bolt lengths shall be purchased to the next higher increment of 5mm.upon installation,standard bolt thread shall be exposed only on one side with the thread exposure of the extra bolt length to the other side of the flange. 采购时,螺栓头长度应该比要求再长5mm。在安装过程中,标准螺栓螺纹在全部伸到一边时,还应有多余长度的螺纹在法兰的另一边。查看更多