仪表的防爆性能可靠与否，主要取决于隔爆外壳的承压强度及隔爆面对质量情况。
The reliability of the explosion-proof gauge mainly depends on the bearing strength of the case and the quality of the explosion-proof surface.
运用材料力学原理，对矿用隔爆型电气设备外壳进行受力分析，详细介绍了矿用隔爆外壳的设计方法。
By the theory of material mechanics, the stress situation of mining flame-proof electrical apparatus enclosure is analyzed, and the method of design is introduced.
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