The performance tests demonstrate that the proper delay composition, the proper fire transfer channel and fire transfer area are the key technology for developing the precision of delay time.
结果证明：选用合适的延期药，设计合适的传火通道和传火面积是提高延期时间精度的技术关键，并通过方案及性能试验进行验证。
The movement of high temperature smoke in a fire road during mine fire was a three dimensional unsteady flow which is accompanied with heat and mass transfer.
矿井火灾时期，火源巷道内高温烟流运动为三维非定常的流动及传热传质过程。
The movement of high temperature smoke in a fire road during mine fire was a three dimensional unsteady flow which is accompanied with heat and mass transfer.
矿井火灾时期，火源巷道内高温烟流运动为三维非定常的流动及传热传质过程。
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