指数

In this paper, the conditional mean and its applications to Bayesian estimation of the parameters and reliability measures of common failure distribution which include two-parameter exponential distribution, left truncated two-parameter exponential distribution, normal distribution and lognormal distribution are discussed.

本文讨论了条件均值对某些常见失效分布的参数与可靠性测度的Bayes估计的应用，这些分布包括，双参数指数分布，左截尾双参数指数分布，正态分布与对数正态分布。

The Unreserve Exponent choice lets you tell the server to unreserved an exponent you have been assigned.

归还指数菜单项告知服务器收回一个分配给您的指数。

Using JIP-test, the difference of chlorophyll a fluorescence parameters between the two cultivars was compared in 4 treatments: shaded (40% of natural light intensity) 15 d, unshaded 15 d, shaded 30d and unshaded 30 d.

品种间最大光化学效率差异不大，但99-8的PI（以吸收光能为基础的性能指数）和PI（以单位面积为基础的性能指数）在两不同光照条件下均明显高于黑又亮。

With the land use change and the enhancement of human activity, the groundwater pollution index rises from the indirect recharge area via the direct recharge area to the discharge area. The same variation happens from upper reaches to lower reaches in Daxin river basin, a typical karat area in the east of Jinan spring basin where the patterns of land use and human activity changes apparently. There is a close relationship between the groundwater and land use change and human activity.

伴随土地利用方式的改变和人类活动强度的空间变化，地下水质从间接补给区、直接补给区到泉水排泄区，单项污染指数和综合污染指数依次升高；具有典型代表性的泉域东部大辛河流域，从上游、中游到下游，地下水污染物的浓度也渐次升高，且愈往下游污染物浓度增幅愈大，显示出与土地利用方式和人类活动的密切相关性。

With the land use change and the enhancement of human activity, the groundwater pollution index rises from the indirect recharge area via the direct recharge area to the discharge area. The same variation happens from upper reaches to lower reaches in Daxin river basin, a typical karst area in the east of Jinan spring basin where the patterns of land use and human activity changes apparently. There is a close relationship between the groundwater and land use change and human activity.

伴随土地利用方式的改变和人类活动强度的空间变化，地下水质从间接补给区、直接补给区到泉水排泄区，单项污染指数和综合污染指数依次升高；具有典型代表性的泉域东部大辛河流域，从上游、中游到下游，地下水污染物的浓度也渐次升高，且愈往下游污染物浓度增幅愈大，显示出与土地利用方式和人类活动的密切相关性。

The Simpson and Shannon-Weiner indices of aquatic plant diversity were both significantly positively correlated with catalase, protease and invertase, and negatively correlated with urase, soil organic matter and total nitrogen. Similarly, soil organic matter and total nitrogen were negatively correlated with catalase, protease and invertase but positively correlated with urase.

植物α多样性指数(辛普森、香浓-维纳指数)与湿地土壤有机质、全氮含量呈负相关，与土壤过氧化氢酶、蛋白酶、蔗糖酶活性呈正相关，与脲酶活性呈负相关；土壤有机质、全氮含量与过氧化氢酶、蛋白酶、蔗糖酶活性呈一致负相关，与脲酶活性则成正相关。

The test conclusions indicates that the long-term equilibrium relationship between SZZS series and its optimal series is not significant, but the short-term dynamic relationship is comparatively significant; since 2007, the ratio of variance to its mean is more than 0.4, which implies that SZZS is deviated from its optimal level to a great extent, which is the basic feature of bull market or bear market, and this also verify the robustness of these conclusions.

实证结论表明，上证指数序列与其均值序列的长期均衡关系不显著，但短期的动态关系比较明显；从2007年开始，上海股市的标准差/均值相当大，超过了0.4，这意味着上证指数偏离其均值的程度较大，这是牛、熊市的基本特征，这也印证了本文结论的强健性。

The dynamics of blood flow in hemodialysis vascularity was evaluated by pulsatility index and resistence index.

对搏动指数和阻力指数用于评价透析血管血流动力学方面的变化作了初步分析。

In the former risk evaluation, risk and venerability is evaluated separately and the value of weight was assigned according to correlation of influencing factors, which made risk evaluation index and venerability index subjective.

在已往的风险性评价中，一般是将危险性与易损性分开评价，并且按影响因素的关联程度从大到小依次赋予权重值，使危险性指数和易损性指数的计算结果带有较大的主观性。

Their weight, height, blood pressure and vital capacity were calculated.

采用分层随机整群抽样法选择张家口市7～12周岁3 043名儿童，分别测定身高、体重、血压和肺活量，计算体质量指数和肺活量指数。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。