程林

程林程林
  1. 北京林业大学研制了BJL系列低流量、高扬程林用消防泵,但在动力匹配方面的研究仍属空白,因此对BJL系列林用消防泵的动力匹配进行优化研究具有重要意义。

    Beijing Forestry University developed the BJL series low-flow high-lift forest fire extinguishing pump . However , the research on the aspect of the dynamic matching is still blank .

  2. 一直都是这样,程林说。

    This is the way it has always been , Mr. Cheng said .