1) skin friction law
阻力规律
1.
Corresponding to the generalized velocity distribution formula, a skin friction law is derived.
通过对壁面紊流结构的分析，进而给出了固壁紊流包括光滑区、过渡区和粗糙区在内的统一的指数型流速分布公式和阻力规律，并用尼库拉兹的实验资料作了验证。
2.
Corresponding to the new formula, skin friction laws for turbulent flow in hydraulic rough region in open channels and pipes are presented.
基于相似理论中的不完全自相似假设，研究了粗糙区紊流流速分布的结构形式，通过对尼库拉兹粗糙管水流试验资料的分析，进而给出了粗糙区紊流新的指数型流速分布公式，在此基础上，探讨了管道和明渠的阻力规律。
2) Resistance law
阻力定律
1.
By using the similarity theory and resistance law of PBL in barotropic and baroclinic conditions,we have derived a formula for the vertical velocity w at the top of the PBL which includes the effects ofstratification, roughness, their horizontal gradients, the gradient of geostrophic wind speed andbaroclinity based on the relation between w and eddy stress in the surface layer.
本文从正斜压及有层结时的边界层相似理论及阻力定律出发，由边界层顶垂直速度与地面湍应力的关系求出了层结、粗糙度、它们的水平梯度及地转风的水平梯度、斜压性对W的影响的解析式，可用于模式计算。
3) law of force constancy
恒力规律
1.
They are law of force constancy, law of autonomy and law of economy.
本文发掘的语用三律:恒力规律(law of force constancy)、自主性规律(law of autonomy)以及经济规律(law of economy)恰巧能够弥此缺憾,关照言语交际的全过程。
4) mechanical law
力学规律
1.
The adaptability principle of mechanical law and the scale-invariant principle of mechanical law in fractal space are proved by using parameter-space and scale-space transforms in renormalization groups.
本文应重整化群的参数空间变换和标度空间变换的方法证明了分形空间的力学规律的适应性原理和标度不变性原理。
6) Productivity law
生产力规律
补充资料：肺循环阻力(或全肺阻力)
肺循环阻力(或全肺阻力)
pulmonary circulation resistance
血液在肺部血管内流动时和血管壁之间的摩擦力和血液内部的摩擦阻力。肺动脉管壁较薄，分支短而管径大，故肺动脉的可扩性较大，对血流的阻力很小，仅0.12PRU(外周阻力单位)。肺循环动脉部分总的阻力和静脉部分总的阻力相等，故血液流动时在动脉部分的压力降落和静脉部分的压力降落相等。
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