求翻译：有两个隔爆腔，盖与底座间隔爆接合面为止口结构，引入装置为压紧螺母结构，有内外接地标志和螺栓，其外壳材质为ZL102是什么意思？

There are two explosion-proof chamber, cover with the base until the population structure of joints burst interval, the introduction of devices for the compression nut structure, there are signs inside and outside the ground and bolt, the shell made of ZL102

There are two alternate burglary cavity, covers and 100-400 teleintegrated interval until blasting devices mouth structures, introduction to pressure inside and outside structures, with nuts and bolts, grounding marks its shell material for 102 ZL

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There are two explosion-cavity, explosive land cover and base interval so far mouth structure, introducing devices for clamping nuts structure, inside and outside the ground marks and bolts, the fixture is ZL102

There are two explosion-cavity, explosive land cover and base interval so far mouth structure, introducing devices for clamping nuts structure, inside and outside the ground marks and bolts, the fixture is ZL102