“这是一种指数效应。”波特说。
指数效应是指在成份指数调整前后，调入指数和调出指数的股票的价格和成交量均会有的异常的市场反应。
The index effect is defined as the abnormal market reflection of price and volume of the stocks being added into and deleted from an index as the index adjusts its sample stocks timely.
这个模型的核心是延伸型指数函数的松弛效应，就像放射性物质的衰变曲线一样。
The core of this model is a function called a stretched exponential relaxation, which is similar to the decay curve of a radioactive material.
利用诱导效应指数建立了一个含羰基有机化合物的标准生成热的简单计算方法。
A simple method for calculating the standard heats of formation of organic compounds containing carboxide using the inductive effect index is built up.
亚硝胺类化合物的结构与毒性之间存在着一定的相互关系。用诱导效应指数I作为结构的特征键参数可以得到烷基亚硝安的结构与毒性的定量关系。
By using the inductive effect index I as a characteristic bond-parameter, a formula is given describing the relation between the structure of N-nitrosamines and its acute toxicity.
利用诱导效应指数，建立了某些碳氢化合物的燃烧热经验计算式，30个可比较值的平均相对差为0.04%。
By using the inductive effect index, the formula for calculating the combustion heats of some normal hydrocarbons has been built up. The average relative deviation for 30 data is 0.04%.
通过对复合材料熔体指数、力学性能以及形态结构的比较，探讨了无机组合粒子级复配共混的协同效应。
The compound inorganic particles synergistic hybridization effect was studied by comparing the melt index, mechanics capability and the morphology.
工业聚集经济指数是衡量城市聚集经济效应的重要尺度。
Industrial agglomeration economy index is an important measure of urban agglomeration economy effect.
提示急性心肌梗死患者口服氯沙坦产生外周阻力及心肌耗氧量下降，心指数增加等有益的血流动力学效应。
The results showed that oral losartan administrated to patients with ami resulted in beneficial hemodynamic effects, such as decrease of SVR and oxygen consumption, increase of cardiac index.
利用极化效应指数，构造了链烷烃的有效碳链长度。
The effective length of carbon chain of alkanes was built up by using the polarizability effective index.
首次使用诱导效应指数来表达同系化合物的分子结构与其微波吸收之间的关系。
The inductive effect index was introduced to represent a quantitative relationship between molecular structure of homologous com pounds and microwave absorption.
通过观察细胞病变效应，用噻唑蓝(MTT)比色法检测细胞存活率，以确定该药物治疗指数。
By means of observing cytopathic effect and adopting MTT colorimetric assay for cell survival rate, their therapeutic index was calculated.
排除这些女孩子的社会经济地位、体重指数及家庭情感沟通等因素后，家庭聚餐的保护效应仍存在。
The protective effect of family meals persisted regardless of the girls' socioeconomic status, body mass index, or feelings of family connectedness.
农产品期货价格与股票价格指数对CPI通胀的正向影响渐趋清晰，房地产价格上涨产生抑制CPI通胀的“转移效应”。
The price of agricultural produce and indexes of stock price tend to clearly have positive effects on CPI inflation and the rise of real estate produces a "transfer effect" to restrain CPI inflation.
通过对复合材料的氧指数测定表明，添加了可膨胀石墨的复合材料具有良好的阻燃特性，但膨胀石墨对于复合材料的阻燃效应贡献甚微。
By means of the test of LOI (limited oxygen index), it is showed that composites have good flame-retardant characteristics and expanded graphite has less contribution to the flame -retardant effect.
光电效应是光电吸收截面指数（PEF）测井的测量原理，PEF测井用来划分岩性。
The photoelectric effect is the principle behind the PEF log, which identifies lithology.
通过比较该有效组合边界与国内股票指数在回报-方差平面上所处的位置，可以判断股票投资组合国际化的效应。
Then the diversification benefit would be visualized by comparing the efficient frontier and domestic stock index 's risk-return point on the return-variance plane.
通过数值计算结果表明：有限字长混沌序列的周期态和过渡态都具有正的最大Lyapunov指数，且小数据量法对有限字长效应是鲁棒的。
The results show that both periodic and transitional chaotic sequences have positive maximum Lyapunov exponent, and the small data sets method is robust to the finite word length of the computer.
本文收集整理了能反映企业财务整合效应的各项财务指标，采用构造综合评判指数的方法进行财务整合效应的评价。
This thesis collects some financial index which can reflect the financial integration effect, evaluates the financial effect by constructing the comprehensive evaluation index.
本文考虑指数学习效应和位置学习效应同时发生的新的排序模型。
In this paper, we introduce a new scheduling model in which both exponential time-dependent learning effect and position-based learning effect exist simultaneously.
结果表明，边际效应指数可作为选择耐密马铃薯品种和确定马铃薯品种种植密度的指标。
The results showed that the marginal effect index could be used as a choice for tolerant dense planting potato breed and as a parameter of potato plant density.
试验结果表明，在温度水平一定的条件下，砂岩的孔隙度随有效应力的增加而呈负指数规律减小；
The test results show that the porosity of sandstone decrease with the increasing effective stress at the fixed temperature level, following the law of negative exponent.
实验观察到LITV信号的指数衰减的规律，与LITV效应的理论模型相吻合。
The measured LITV signals were observed decaying exponentially, which is in agreement with the model of LITV effect.
人口持续增长导致的对资源环境压力的增大是耕地指数和草场载畜量对沙漠化影响产生累加效应的根本原因。
The root cause of the cumulative impacts of cropland index and carrying capacity on desertification is the increasing pressure on environment and resource due to increasing population.
采用变换矢栅转换过程中像元尺度的方法，对福建省武夷山自然保护区景观格局指数的尺度效应进行分析，并利用分维数方法选取最佳的像元尺度值。
Using a changing pixel scale method in translating vector images to grade images, the effect of scale on landscape pattern indices for the Wuyishan Nature Reserve was studied.
本文借助铪指数实验研究了30％TBP-煤油-硝酸体系的辐照后效应。
The post-irradiation effects of 30% TBP-Kerosene-HNO3 systems have been investigated by means of the hafnium number test.
另外，计算景观类型间的空间关联指数，以刻画森林与其他土地利用类型的空间交互效应。
Additionally, spatial association index was computed to characterize the spatial interactions between forest class and other target land use types of interest.
胰岛素抵抗是与体重指数相关的重要指标，被认为能更准确地反应脂肪的代谢效应。
Insulin resistance is also an important correlate of BMI and is perceived as a more accurate marker of the metabolic effect of obesity.
胰岛素抵抗是与体重指数相关的重要指标，被认为能更准确地反应脂肪的代谢效应。
Insulin resistance is also an important correlate of BMI and is perceived as a more accurate marker of the metabolic effect of obesity.
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