为评价管材拉拔中的不均匀变形，提出用管材拉拔前后截面形状变化指数Q描述截面变形的不均匀性。
It is put forward in this article that the cross section deformation index Q can be used to evaluate the inhomogeneity of deformation in tube drawing.
介绍了衡量套管不均匀变形程度的指标一截面形状变化指数，并用试验数据对该指标的应用进行了检验。
The section form variation coefficient which is the judgment of non-uniform deformation degree index of casing is introduced. And the application of the index is examined by the test data.
植被指数反映了这一变化。
我们可以对奇点所带来的变化是否将会使得那样的指数增长得以继续进行质疑。
We can speculate as to the changes the Singularity would bring that would enable that exponential growth to continue.
另一个指标，地球生命指数，是1 686种脊椎动物的种群数量变化的平均数。
Another indicator, the Living Planet Index, averages changes in the sizes of populations of 1, 686 vertebrate species.
第一，这两个指数在计算单项产品的价格变化时套用了不同的平均值公式。
First and foremost, the two indices use different averaging formulae when calculating price changes for each individual item.
由于温度和寿命的关系指数，一些小的温度辩变化结果可能会引起一个相对大的寿命的变化。
Because of the exponential relationship between temperature and lifespan, small changes in temperature could result in relatively large changes in lifespan.
通过衡量“冷静”程度，“微博客宇宙”可以根据某天的冷静值预测三天后的道琼斯工业平均指数的变化方向，其准确率达到了86.7%。
Measuring how calm the Twitterverse is on a given day can foretell the direction of changes to the Dow Jones Industrial Average three days later with an accuracy of 86.7 percent.
因为指数不受时段影响，也不会因为房屋出售的混乱而变化。
As a result the index is not pulled this way and that by changes in the mix of houses sold.
这些变化帮助他在过去一年里将体重指数(B.M.I.)减少了20%，并且帮助他们减少了家庭食品开支预算。
The changes helped Kris reduce his B.M.I. by 20 percent over the course of a year, while also helping the family reduce its food budget.
在其他的变化方面，用来计算批发价格指数的篮子中的粮食产品的额外补贴去年从26.9%减少到24.3%。
Among other changes, the weighting of food products in the basket used to calculate the WPI was reduced last year to 24.3% from 26.9%.
而32组“肥胖基因”在人体体质指数变化中只占1.45%的比例。
The 32 known "obesity genes" only account for 1.45 percent of the variation in BMI.
有很多会议、甚至是学校庆祝以指数变化速度的迅速的技术融合，从电脑的能力到基因检测。
There are conferences and even a school celebrating the convergence of a growing number of exponential rates-of-change ranging from computer power to the falling cost of gene sequencing.
罕见的暴雨导致了洪水的到来，但同时也将沙漠染成了绿色，该变化在这幅植被指数图中得到很好体现。
The extreme rain brought floods, but it also turned the desert green, as shown in this vegetation index image.
女孩体重指数高于第九十九百分位的没有变化，男孩在整个研究期间有稍微的变化。
The rate in the over 99th percentile group didn't change for girls and changed little over the study period for boys.
虽然最近一期八月份消费通胀指数达到3.1%，没有多大变化，然而食品成本却开始大幅上升，面包，谷物和蔬菜的价格随之提高。
Although the last consumer price inflation figures were unchanged at 3.1% for the year to August, food components were some of the biggest risers. Bread, cereal and vegetables all cost more.
比如，这个定义忽略了失业率的变化或是消费信心指数的变化。
For example this definition ignores any changes in the unemployment rate or consumer confidence.
这种状况周一发生了变化，波动指数攀升15%，至39.18，为1月20日以来的最大单日涨幅，而那天正是股市另一个经历惨痛抛售的梦魇之日。
That changed on Monday, as the VIX jumped 15% to 39.18, its biggest one-day gain since Jan. 20, which was the day of another brutal market selloff.
不可否认，一向看多不看空的基金确实是越来越多，这些基金在试图紧跟商品价格指数变化，而指数中石油价格通常占到最大的比重。
There is, admittedly, a growing category of inherently bullish investment funds that seek to track commodity-price indices, in which oil is usually the biggest component.
长期以来，研究植物的科学家采用卫星测量植被的新鲜指数，即观测植物反射阳光值，预测植物的状态。 植物新鲜指数的变化是季节性的。
Scientists who study plants and trees from space have long relied on satellite-derived measures of “greenness”—that is, observations of the amount of sunlight reflected by vegetation.
画出CCD的性能(用像素度量)随时间变化的曲线，可知它跟计算能力的增长曲线接近，都是以令人炫目的指数速率增长的(见下图)。
Plotted against time, CCD performance, measured in pixels, has grown at close to the same dizzying logarithmic rate that computing power has (see below).
并从色谱热力学函数分析了保留指数随温度变化规律的主要原因是由于在色谱分离过程中不同的熵变和焓变所造成的。
The changing law of retention index with temperature from chromatographic thermal function resulted from the variation of the different entropy and enthalpy during the chromatographic separation.
并从色谱热力学函数分析了保留指数随温度变化规律的主要原因是由于在色谱分离过程中不同的熵变和焓变所造成的。
The changing law of retention index with temperature from chromatographic thermal function resulted from the variation of the different entropy and enthalpy during the chromatographic separation.
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