And that told us that the flow is proportional to a negative gradient of a concentration.
这告诉我们，流动是和浓度的负梯度成比例的。
Linear search in the negative gradient direction was also applied to accelerate the optimization.
引入负梯度方向直线搜索来加速算法寻优。
The negative gradient is a throwback to the earlier days of chromatography when columns were less stable than they are today.
负梯度是一回撤的过程，早期的色谱柱子没有今天的那么稳定，所以需要这样做。
The ionospheric up flowing ion mainly distributes in the near geo space and its flux has a negative gradient versus geo center distance.
上行离子主要分布在近地空间，其通量密度相对于地心距离呈负梯度。
The range and depth dependence of the long-range reverberation and echo-reverberation ratio were calculated for the cases of negative gradient and homogeneous layers.
用该法在浅海负梯度和均匀层情况下，计算了远程混响和回波、混响比的距离、深度结构。
Based on the theory of the local spectrum of ambient-sea noise field, theoretical models of the low-noise-channel for typical shallow-water negative gradient (or thermocline) are developed.
本文根据海洋噪声场随机局部谱展开理论，分析了典型浅海负梯度(或负跃层)下低噪声信道的理论模型。
u That's negative the gradient. So, F is directed along minus gradient u.
那就是负梯度，F指向-▽
The negative pressure gradient and slip velocity in standpipe increase with the increase of circulating rate.
随着循环量的增大，立管内的负压差梯度及气固相对速度也随之增大；
The sound field of normal modes in the. shallow-water having negative velocity gradient and rough interface are calculated using such results.
文中用其结果计算了具有粗糙界面的负声速梯度浅海中的简正波声场。
An eigenmode equation of ion temperature gradient driven instability in a tokamak plasma with negative magnetic shear is solved numerically by the shooting method.
采用打靶法，数值求解了在负磁剪切托卡马克等离子体中离子温度梯度驱动的复本征模方程。
The attenuation of the sound waves leads to a negative exponent pressure gradient.
随着波长的增大或介质黏度的减小，声波的衰减减缓，压力梯度越小。
Methods the pig skin was treated with negative pressure by a self-made device to remove the blistered epidermis, then dermal cells were removed by ion detergent with osmotic pressure gradient effects.
方法：利用自制的装置，先将猪皮经负压处理，去除起泡后的表皮，然后利用离子型去污剂的渗透压梯度作用去除真皮内的细胞成分。
Methods the pig skin was treated with negative pressure by a self-made device to remove the blistered epidermis, then dermal cells were removed by ion detergent with osmotic pressure gradient effects.
方法：利用自制的装置，先将猪皮经负压处理，去除起泡后的表皮，然后利用离子型去污剂的渗透压梯度作用去除真皮内的细胞成分。
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