Finally the calculation method and formula of coal methane content and pressure are presented by using the emission rate from broken coal.
最后提出了利用煤屑解吸瓦斯流量测算煤层瓦斯压力和瓦斯含量的计算方法和计算公式。
On the basis of theoretical analysis and model test, the method and formula for estimating the seepage stability of dike foundation are provided.
在理论分析和模型试验的基础上，给出核算堤基渗流稳定的方法和公式。
Using the method and formula above, a L-band synthesizer has been finished. It has satisfactory performance on phase noise, frequency jump speed and spur rejection.
该跳频源在相位噪声、调频速度和杂散抑制等方面的性能指标较高。
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