北美西部晚期的坎帕阶霸王龙的化石记录存在地理差异。
The fossil record of late Campanian tyrannosauroids of western North America has a geographic gap.
我们建立了一套描述聚丁二炔晶体中的三阶非线性光学过程的数学公式。
We derived a set of mathematical formulas for describing the third-order nonlinear optical process in polydiacetylene crystals.
勃朗阶延伸回上新世。
马镫的一阶效应已是非常巨大。
在通常的形式下,这个反应看起来就像零阶反应。
So in the usual formulation, this would still have the appearance of a zero order reaction.
这意味着如果x变化,函数值不会发生一阶变化。
That means when I vary x the first order the function doesn't change.
它们唯一共同之处就是,它们都被叫作一阶微分算子。
The only thing they have in common is that both are what's called a first order differential operator.
通常,一阶机械特性就能为预测光学性能提供足够的精度。
Often, only first-order mechanical behavior is needed to provide sufficient accuracy in the prediction of optical performance.
这意味着,不管放什么进去,都会包括一阶偏导。
That means it involves the first partial derivatives of whatever you put into it.
三阶吉行是能让你对日本美好明天充满希望的人之一。
YOSHIYUKI SANKAI is one of those people who make you think Japan has a bright future.
这一因素被称为是“二阶导数”,或者是变化率的变化率。
This factor has been dubbed "the second derivative", or the rate of change of the rate of change.
这些教士都60多岁,而且主要是传统教阶制度中的高级教士。
All of these priests were over 60 years of age and represented primarily the higher ranks in the traditional ecclesiastical hierarchy.
矩阵迭代法是求矩阵的第一阶特征值与特征向量的一种数值方法。
Matrix iteration method can be employed to figure out the first eigenvalue and eigenvector of a matrix.
这是一个临界点,考察它的二阶导数,会发现这确实是一个极大值点。
That is a critical point. And we used the second derivative to see that this critical point is a local maximum.
在稀有气体一阶电离势的基础上,科塞尔注意到:氙最可能形成氟化物和氧化物。
On the basis of the first ionization potentials of the gases, Kossel noted that xenon was most likely to have the capability of forming fluorides and oxides.
有必要对加速度给出一个严格的定义,加速度,作为一个矢量,是速度的一阶导数。
So, the definition will take effect. The acceleration is as a vector, and the acceleration vector is just the derivative of a velocity vector.
和以前一样,它来源于这样一个事实,混合二阶导数,求导次序改变,结果不变。
And, as before, this comes from the fact that the mixed second derivatives are the same, no matter in which order you take them.
他们说,二阶导数正在趋正,意思是:尽管经济仍在下滑,但是下滑的速度减缓了。
The second derivative, they say, is turning positive. That means that although the economy is spiralling down, it is doing so more slowly.
在祭台对面的左侧放置着按照教阶来安排的桌子和蒲团,最高级别教士的桌子和蒲团离祭台最近。
Along the left side, facing the altar, are the low seats or divans and tables of the clergy, arranged in the order of their hierarchical standing-the highest being closest to the altar.
稀有气体的一阶电离势提供了一个评价的标准,能衡量外层电子被有效核电荷束缚的强度。
The first ionization potentials of the noble gases provide a measure of how firmly the outer electrons are held by the effective nuclear charge.
他对每一阶都进行了必要的精确计算并发现它们都是符合实验结果的,而我听到这后也是舒了一口气。
He made the necessary calculations to all orders of accuracy and found that they did fit, and I was very relieved to hear about it.
实际上,虽然严格来说反应速率,对于化学组分来说是零阶反应,但对于光子来说不是零阶反应。
And in fact, strictly speaking although this is zero order in terms of the chemical constituents, it's not zero order in the photons.
威廉姆森的研究成果集中于公司之类的位阶型组织与股票市场相比,其处理利益冲突的各种不同方式。
Williamson's work has centred on the way in which conflicts of interest are handled in different ways by hierarchical organisations, such as firms, compared with stock markets.
有些配置(如只有一个数据库资源的那些配置)不需要xa接口的两阶提交协议提供的数据完整性。
Some configurations, such as those with only one database resource, do not require the full data integrity that is provided by the two-phase commit protocol of the XA interface.
有些配置(如只有一个数据库资源的那些配置)不需要xa接口的两阶提交协议提供的数据完整性。
Some configurations, such as those with only one database resource, do not require the full data integrity that is provided by the two-phase commit protocol of the XA interface.
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