左侧较大的紧固螺母松动，需要修理或更换。
The large securing nuts on the left side are loose and need to be repaired or replaced.
筒体螺栓的紧固螺母和筒体外壁之间也采用橡胶垫圈密封。
A rubber gasket seal is used between a clamp nut of a barrel screw bolt and the outer wall of the barrel body of the utility model.
为了在每个螺母上获一至的压力，建议用扳手或相关的计量装置紧固螺母注意：此时装置如果处于无泄漏状态，可能引起盘根燃烧。
In order to be one on each nut to the pressure, it is recommended to use wrenches or nut fastening the measuring device Note: at this point if the device is leak-free state, may cause burning packing.
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