'甲烷'。''和空气的爆炸混合物。
压力也在累积，所以导致混合物在室内快速发生爆炸。
Pressure accumulates too, and so the mixture quickly explodes out from the chamber.
能燃烧，蒸气与空气形成爆炸性混合物，爆炸极限7% - 73%(体积)。
Can burn, vapor and air to form an explosive mixture, the explosion limit of 7%-73% (volume).
实验研究了煤尘-甲烷混合物的爆炸特性。
The explosion characteristics of coal dust-methane mixture were studied.
爆炸性粉尘混合物危险场所：11区。
For the dangerous sites with explosive dust mixture: 11 division.
爆炸性气体混合物危险场所：2区。
For the dangerous sites with explosive air mixture: 2 division.
爆炸性气体混合物危险场所：2区。
For the dangerous sites with explosive air mixture: 2 division.
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