spontaneous coal的意思|示意

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spontaneous coal相关短语

1、 spontaneous combustion of coal 煤炭自燃,煤自燃发火

2、 coal spontaneous combustion tendency 煤的自燃倾向性

3、 spontaneous combustion of coal seam 煤层自燃

4、 Spontaneous Combustion Coal 自燃性煤

5、 period of coal spontaneous combustion 自然发火期

6、 spontaneous combustion of coal gangue 煤矸石自燃

7、 coal spontaneous 煤自然