The reason of thinning out of the upper shell and spherical head for coke tower was analyzed briefly. The temporary repair measure was proposed.
对焦炭塔上部壳体和球形封头的减薄原因进行了简要分析，提出了临时修复措施。
The hinging device can conveniently distribute wires inside through the grooves of the upper arm and the lower arm and the notches of the upper shell and the lower shell.
本发明铰接装置通过设置在上、下臂的凹槽及上、下壳体的开槽从而方便在其内部走线。
The utility model relates to a lamp shell of an escape guiding lamp, comprising an upper shell and a lower shell, and the lower shell is hollow for forming a light transmission part;
一种逃生引导灯的灯壳，包括上壳体和下壳体，所述的下壳体上镂空从而形成透光部；
The utility model relates to a lamp shell of an escape guiding lamp, comprising an upper shell and a lower shell, and the lower shell is hollow for forming a light transmission part;
一种逃生引导灯的灯壳，包括上壳体和下壳体，所述的下壳体上镂空从而形成透光部；
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