进而又研究了初始饱和度梯度对试井规律的影响。
Lastly, the effects of initial oil saturation gradient on them are discussed.
已有几种不同的理论对金属丰度梯度在亿万年间如何变化作了推测。
Different theories predict how this metallicity gradient changes over billions of years.
晶体生长速率取决于过冷度、温度梯度和初始粉末颗粒尺寸。
The growth velocity of the crystal depends on the undercooling, temperature gradient and original particles in the precursor.
因此，主盘在形成伊始有一个很大的丰度梯度，就像遥远的狮子座里的那个星系那样。
Thus, the disc begins its existence with a steep metallicity gradient, like the one in the distant galaxy in Leo.
因为我们看到的它还处于早期，这个结果表明螺旋星系主盘开始时有着很大的金属丰度梯度。
Because we see the galaxy when it was young, this result suggests spiral discs start off with steep metallicity gradients.
利用平方慢度梯度为常数的分布函数进行解析射线追踪其表达式结构简单而又精确，在程序实现上是很方便的。
Programming analytical ray-tracing by making use of square slowness gradient distribution formalism, its expression constitution is simple and accurate, so it is also easy to complete program.
另外，去年有其他天文学家报告称在一个更远的星系中发现了较大的金属丰度梯度，但那个星系不是螺旋星系，所以它与银河系的关系就没有那么明确了。
In addition, last year other astronomers reported a steep metallicity gradient in an even farther galaxy, but that galaxy is not a spiral, so its relevance to the Milky Way is less clear.
如果天文学家能够观测到十亿光年外的螺旋星云的金属丰度梯度，我们就可以知道亿万年之前的梯度有多大，因此也就可以知道它是如何随时间变化的。
If astronomers could observe metallicity gradients in spiral galaxies billions of light-years away, we could see how steep the gradients were billions of years ago and thus how they change over time.
如果说函数的梯度是向量，那么向量场的散度就是函数。
So, if the gradient of a function is a vector, the divergence of a vector field is a function.
由上次的测试可知，如果一个东西是保守的，要确定是不是梯度，我们只需要计算旋度，查看它是否是。
The test that we saw last time saying, well, to check if something is a gradient field if it's conservative, 0 we just have to compute the curl and check whether it's zero.
我们已经知道了一个准则，如果向量场的旋度为零，而且它在整个平面上有定义，那么这个向量场是保守的，而且它是个梯度场。
Well, we've seen this criterion that if a curl of the vector field is zero and it's defined in the entire plane, then the vector field is conservative, and it's a gradient field.
梯度和散度是完全不同的东西。
OK, so divergence and gradients are completely different things.
一个向量场,如果定义在单连通区域并且旋度为零，那么它就是一个梯度场，并且其上的线积分与路径无关。
OK, so, we've seen that if we have a vector field defined in a simply connected region, and its curl is zero, then it's a gradient field, and the line integral is path independent.
然后，我用另外10分钟的梯度把最终的条件重新平衡到初始的条件，接着保持8分钟等度洗脱。
Then, I use another 10-min gradient to reequilibrate from the final conditions back to the initial conditions, followed by 8 min of isocratic hold.
其次，选择其中一个形状和使用梯度工具(克)单击并拖动在一个45度角的整个叶片形状的一半。
Next, select one shape and use the Gradient Tool (g) to click and drag at a 45 degree Angle across the leaf half shape.
接下来，了解如何设置假辐射度反弹灯，使用梯度，以提高阴影，阴影灯光和控制光照强度，衰减和效果。
Next, learn how to set up fake radiosity bounce lights, use gradients to enhance shadows, shadow lights, and control light intensity, falloff and effect.
考虑了混凝土多相系统中固体速度、饱和度乘蒸汽密度的空间梯度和孔隙压力空间梯度；
The model includes solid velocity, space grade of saturation with vapour density and space grade of porous pressure in concrete multiphase system.
研究发现，随着交联时间的延长，交联反应从明胶材料的表面至内部逐步进行，由此可获得交联度呈梯度变化的明胶材料。
With increasing reaction time, the cross linking reaction proceeded from the surface to core gradually to give a gelatin material with cross-linking degree gradient across the section.
首先导出了拉普拉斯、二阶梯度方向导数和侧向曲率三者之间的关系式，指出由于侧向曲率的影响，拉普拉斯在检测弯曲边界时必然产生定位误差。
Our results show that the level crossing curvature can cause location error of the Laplacian, particularly when the edges with large curvatures and small gradients.
提出了梯度分析法，并将其与国际上通用的标准匀度指数法进行了分析和比较。
In this paper, the method of gradient was advanced and compared with the standard formation number general in the paper field.
在等度及梯度洗脱条件下，非对映异构体辛可宁与辛可尼丁被完全分离。
Diastereomers of cinchonine and cinchonidine were fully separated both under isocratic and gradient elutions on the chiral monolithic column.
目的考察麝香保心p H依赖型梯度释药微丸的体外释放度。
Object To investigate the release of pH dependent gradient releasing heart protecting musk pellets (GRHPMP) in vitro.
提出一种基于对齐度和模糊梯度相似性的图像配准方法。
A new approach for image registration is proposed based on alignment metric and fuzzy gradient similarity.
也证明了积分核算子可用梯度与散度算子表出。
It is also shown that integral kernel operators can be expressedin terms of gradient and divergent operators.
该融合策略首先在区域能量的基础上引入区域梯度，然后根据匹配度的类型和测量值进行小波低频系数的选取。
It is performed by introducing the local gradient into local energy and then selecting the low frequency coefficients according to the type and the vale of match measures.
细观元方法不增加结点自由度，却使得功能梯度板件的任意功能梯度变化、各种复杂边界条件得到反映。
In this method, functionally graded change, arbitrary form of plate and complex boundary conditions can be reflected without increasing the degrees of freedom.
岩石孔径越小，岩石孔隙内部磁场梯度越强，核磁共振测井计算的孔隙度明显偏低；
The more smaller pore size, the more stronger internal Magnetic field gradient. The nmr porosity is significantly lower.
支持度的计算采用了标准化方向梯度强度和的形式。
The ES is calculated by normalizing the summation of orientation gradient.
支持度的计算采用了标准化方向梯度强度和的形式。
The ES is calculated by normalizing the summation of orientation gradient.
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