length of tube meaning in Chinese

炮膛长度

Discusses the influence of structural parameters on the heat exchanger performance in order to get more rational setting of the number of columns , diameter and length of tubes , and designs the three stage spray heat exchanger in detail
分析了结构参数变化对换热器性能的影响，从而合理地设定了管列数、管径和管长，详细设计出三级淋激式换热器的结构。
It is suggested that in the regions of aqueous soil with faster seepage velocity , either the tube - wells can be spaced adequately closer or for the same spacing the number of tube - wells and length of tubes can be reduced under the condition of assuring regular heat transfer effect
在渗流速度较大的富水地区，在保证常规换热效果的情况下，管井间距可适当减小，或在同样管井间距下，可减少管井数量或减小理管长度。