Group II: For use in other areas that may be endangered by a potentially explosive atmosphere.
第二组：用于其他领域，可能受到危害的一个潜在的爆炸性的气氛。
Group II: For use in other areas that may be endangered by a potentially explosive atmosphere.
第二组：用于其他领域，可能会危及一个可能具有爆炸性的气氛。
A potentially explosive atmosphere is constantly present on the inside of silos filled with grain (zone 20).
潜在爆炸危险的是目前不断在与粮食填补(区20)发射井内。
A potentially explosive atmosphere is constantly present on the inside of silos filled with grain (zone 20).
潜在爆炸危险的是目前不断在与粮食填补(区20)发射井内。
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