When using compressed air to supply coal evenly, the layout space and quantity of delivery equipment will have a direct influence upon the cooling result in coal face.
采用压缩空气均匀供冷降温的采煤工作面，送风器的布置间距和数量直接影响着采煤工作面的降温效果。
When working face has mechanized support, air leakage quantity is small, velocity is low in goaf, and spontaneous combustion zone is more approach to working face.
有综采支架时，工作面向采空区的漏风量过小，致使采空区的速度很小，自燃带靠近工作面。
When working face has mechanized support, air leakage quantity is small, velocity is low in goaf, and spontaneous combustion zone is more approach to working face.
有综采支架时，工作面向采空区的漏风量过小，致使采空区的速度很小，自燃带靠近工作面。
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