H2与空气混合,H2的着火含量范围是4.0%~74.2%,下列情况不可能着火的是()。A、H2的含量50.0%B、H2的含量20.0%C、H2的含量10.0%D、H2的含量2.0%
H2与空气混合,H2的着火含量范围是4.0%~74.2%,下列情况不可能着火的是()。
- A、H2的含量50.0%
- B、H2的含量20.0%
- C、H2的含量10.0%
- D、H2的含量2.0%
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