2) roving bobbin
粗纱管
3) big glass tube
粗玻管
1.
Aim To find ways of cutting big glass tubes and new uses of big bottom–broken test tubes in high school chemical experiment and college basic chemical experiment.
目的探求粗玻管的截割方法和破底大(中)试管在中学化学实验和大学基础化学实验中的利用。
4) immature root
粗大根管
5) rib-roughened tube
肋粗糙管
1.
Turbulent heat transfer in smooth tube and rib-roughened tube were numerically simulated.
肋粗糙管是包装设备的一种重要管道,采用数值模拟方法对光滑圆管与肋粗糙管内的湍流传热进行计算,根据数值模拟的结果计算了传热滞流底层与湍流主区内的热阻,计算结果显示贴近壁面的薄滞流底层的热阻约占总热阻的一半,是影响传热的主要区域;肋粗糙管通过表面粗糙减小了热阻,促进了传热。
6) rough surface tube
粗糙管
1.
Based on functions R and G reflecting the flow and heat transfer characteristics of rough surface tubes, coupled with the second law of thermodynamics (entropy generation analysis) and qualitative consideration of rough surface tubes production cost, the comprehensive analysis and evaluation of enhanced heat transfer performance on rough surface tubes are made.
以反映粗糙管流动和传热性能的Ｒ函数和Ｇ函数为基础，结合熵产分析法，并在定性考虑粗糙管制造成本等因素的条件下，对粗糙管的强化传热性能进行了综合分析和评价。
补充资料：粗纱
1.指纺织过程中经粗纱机所制成的半成品，供细纺用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条