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- bottom roughness length 底床粗糙长度
- A large number of computations have been made of effects of bottom roughness, coriolis force, initial water level, time step, and water depth on stability. 针对糙率、科氏力、初始水位、时间步长和水深对稳定性的影响,进行了大量的计算。
- Roughness length during the flood phase is larger than that during the ebb phase, whilst shear velocity during the flood phase is smaller than that during the ebb phase. 涨潮阶段床面粗糙长度大于落潮阶段,涨潮阶段摩阻流速小于落潮阶段。
- The main parameters calibrated in the model are dispersion coefficient(a=0.07, b=0.7), roughness length(0.02m), wind drag coefficient(Cwd=3%), and evaporation rate(0.1/d). 经过率定后确定模型中主要参数值如下:扩散参数a=0.;07;扩散参数b=0
- The main research progress of the relationship between aerodynamic roughness length and vegetation characteristics is summarized and analyzed in this paper. 本文系统地总结了近年来空气动力学粗糙度与植被特征关系的研究成果;分析了各种植被特征因素与空气动力学粗糙度的关系;并对影响空气动力学粗糙度的植被因素的研究方向进行了预测.
- A new method is proposed for the effective roughness length (ERL) in heterogeneous terrain based on the principle of equalization of momentum or heat fluxes calculated by the drag coefficient parameterization scheme used in the ECMWF numerical model. 利用湍流通量相等原理和ECMWF的总体湍流输送系数参数化方案,研究了气候数值模式中非均匀地表类型的有效粗糙度计算问题。
- Land surface models, e. g. Biosphere Atmosphere Transfer Scheme(BATS), estimate albedo of trees over snow roughly with the parameters of roughness length, Z 0, and snow depth, d . 目前在地表模型 (如BATS模型 )中 ,是通过空气动力学粗糙度Z0 与降雪深度d两个参数来估计雪地上树冠的反照率的。
- Review of Aerodynamic Roughness Length 空气动力学粗糙度的物理与实践意义
- dynamical transfer roughness length 动力传输粗糙度长度
- Roughness of the skin can be caused by bad diet. 饮食不好可能引起皮肤粗糙。
- Studies on Influences of Vegetation on Aerodynamic Roughness Length 植被条件对下垫面空气动力学粗糙度影响实验研究
- They sent the enemy ship to the bottom of the sea. 他们把敌舰击沉。
- The child was sitting on the bottom stair. 那孩子正坐在楼梯最下面的一级上。
- The Determination of Roughness Length over City Surface 城市表面粗糙度长度的确定
- I intend to get to the bottom of it. 这件事我打算寻根究底。
- He was always bottom of the class in maths. 他的数学成绩在班上总是垫底。
- The dregs have settled at the bottom of the bottle. 渣滓都沉到瓶底了。
- This rough track will soon be a metalled road. 这条坑坑洼洼的路不久就要铺上碎石了。
- I fell right to the bottom of the stairs. 我从楼梯上一直摔到楼梯下面。
- The ship pitched and tossed in the rough seas. 轮船在汹涌澎湃的大海中起伏颠簸。