这种双通道比值指数和NDVI一样具有衰减仪器噪声和抵消常规大气影响的优点。
Like NDVI, This dual-channel ratio index has the advantages that could attenuate conventional equipment noise and atmospheric effects.
发现比值指数R（760，710）与水稻叶面积指数呈极显著线性相关；而比值指数R（1650，1100）与水稻地上部鲜质量和干质量均呈极显著幂函数相关关系。
After elongation leaf area index was linearly related to ratio index R(760,710), and aboveground fresh and dry weight showed significant relations with ratio index R(1650,1100) in rice.
体重指数是一个以身高与体重为基础计算出的比值，其正常范围通常在18和25之间，超过25为超重，超过30即为肥胖。
BMI is a calculation of height to weight, and the normal range is usually considered to be 18 to 25, with more than 25 considered overweight and above 30 obese.
体质指数是一个考虑到身高和体重的比值。
The index is a ratio that takes into account height and weight.
利用比值植被指数（RVI）分析法，与实地虫灾调查相结合，找出了受虫灾影响后不同灾害程度的RVI临界值，判对率为73%。
The ratio vegetation index(RVI)method is combined with field survey of insect pest to determine critical values of RVI for different degrees of disaster and the judgement accuracy reaches 73%.
对于添加石灰石的SBS I - D沥青胶浆，其针入度指数同样表现一最佳矿粉结合料比，该比值高于其他胶浆的最佳矿粉结合料比。
For the limestone and SBS I-D asphalt mastic, the penetration index values also showed an optimum dust to binder ratio but with higher values than other mastics.
然后再对所有的期货商品，以持仓金额为权重，计算对于基期数据比值的加权算数平均值，得到指数值。
To get the index, we firstly compute the mathematic average for single commodity price, using price and trading volume of all contracts.
方法：以体重指数(BMI)作为评价体脂含量指标，以腰臀围比值(WHR)作为评价体脂分布指标。
Methods: Body mass index (BMI) was used as the index for evaluating fat content and waist to hip measurement ratio (WHR) for fat distribution.
分析表明：负荷-舒适度指数比值曲线在整个坐标轴范围内比值很稳定，说明舒适度指数相对于温度能更好地反映电力负荷的变化。
The analysis indicates: the load amenity index ratio curve is very stable in all axis range, this indicates amenity index can better reflect the change of power load relative to temperature.
研究者将呼吸过程中饱和度下降发生的比例作为血氧饱和度下降指数与呼吸障碍指数的比值。
The researchers calculated the proportion of desaturation to respiratory events as the ratio of oxygen desaturation index to apnea-hypopnea index.
成藏指数可以通过计算烃源岩剩余围岩压力与等效排烃压力的比值来获得。
Then we use the experience relations between expulsion pressure and porosity to calculate reservoir index.
目的用经典的双生子设计探讨遗传因素和环境因素对青少年身高、体重、体质指数(BMI)、腰围、腰臀围比值(WHR)等体型指征相关指标的影响程度。
Objective To investigate the impact of inheritance on height, weight, body mass index (BMI), waist circumference and waist-hip ratio (WHR) in adolescent by the classic twin design.
蛋白质的氨基酸评分（AAS）、化学评分（CS）、必需氨基酸指数（EAAI）、生物价（BV）、营养指数（NI）和氨基酸比值系数分（SRCAA）分别为66。
The amino acid score(AAS), chemical score(CS), essential amino acid index(EAAI), biological value(BV), nutrition index(NI)and score of ratio coefficient of amino acid(SRCAA)of its protein were 66.
替米沙坦与赖诺普利降低血压和脉压疗效：谷峰比值和平滑指数的比较。
Blood pressure - and pulse pressure-lowering effects, trough: peak ratio and smoothness index of telmisartan compared with lisinopril.
最长与最短染色体比值变化较大，为2.78～3.20； 平均臂比、着丝点指数、核型不对称系数、相对长度变化范围较小。
The ratio of the longest chromosome to the shortest range in 2.78~3.20. And index, index of karyotypic asymmetry and relatived length changed indistinctly.
体重指数与腰围、腰臀围比值、身体脂肪、皮下脂肪厚度均有较好的相关性。
There were good correlations between weight index with waistline, proportionality of waistline to hip circumference, body fat and sebum thickness.
Cpm是一个总体的能力指数，定义了均值偏离目标值的均方差的平方根和规范宽度的之间的比值。
Cpm is an overall capability index defined as the ratio of the specification spread (USL - LSL) to the square root of the mean squared deviation from the target.
用搏动指数、阻力指数、A/B比值，结合二维实时显像对胎儿宫内生长迟缓、畸形、宫内胎儿死亡的研究。
The combination of three parameters of Doppler is pulse index (PI), resistance index (RI), A/B ratio together with.
方法采用人体测量参数体重指数（BMI）和腰臀围比值（W/H）将体脂分布不同分为腹内型肥胖组、皮下肥胖组及非肥胖组。
Methods According to body mass index(BMI) and waist to hip circumference(W/H), the subjects were classified into three groups: intra abdominal obesity, subcutaneous obesity and non obesity group.
但赖氨酸含量与蛋白质含量的比值同蛋白质性状的关系则以显著负相关为主，表明选择高蛋白质含量或蛋白质指数的单株将会显著降低该比值。
Some of the pairwise traits had negative genetic correlations especially for the traits between nutrient quality traits and the ratio of lysine content to protein content.
试验中所得到的高达20%的数值与灵敏性土在结构破损明显阶段所具有较高的压缩指数与次压缩指数的比值有关。
High value such as 20% shown by some tests for sensitive clay is related to the high value of ratio of secondary compression index to compression index caused by soil structure collapse.
研究者发现，具有身体质量指数，也就是身高与体重的比值更高的男性，从婚姻的一开始便会更加幸福，同时也会保持这样一种状态。
They discovered that men who had a higher BMI, which is calculated from height and weight, were happier at the start of their marriage and stayed that way.
分别利用水稻抽穗期归一化植被指数和比值植被指数反演了叶面积指数和生物量数据信息。
The test data had been participated in the whole classification process. The accuracy of interpreted information on rice planting area was more than 90%.
分别利用水稻抽穗期归一化植被指数和比值植被指数反演了叶面积指数和生物量数据信息。
The test data had been participated in the whole classification process. The accuracy of interpreted information on rice planting area was more than 90%.
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