失爆，失音，顾名思义就是某一个或者几个音脱落，把单词短语和句子快速连缀成串。煤矿中也有失爆现象。
...与爆破音或其他辅音相邻,第一个爆破音只形成阻碍,但不发生爆破,称做不完全爆破( incomplete plosion )或者失爆( loss of plosion ).不完全爆破的几条主要规.
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还有一些开关是在松动盖板紧固螺栓后(即失爆后)才断电，这些都是重大隐患。
Some switches would be shut off only when the fastened bolt of the cover released (the flameproof function lost). Those all would be the important dangers.
由于过去没有保障这一条款的技术装备，矿用开关无“两防”功能一直未被作为失爆对待。
Because lacking technical equipments to guarantee this provision in the past, it has not been treating as"no explosion-proof"that mine switches don't have"biguard".
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