While a normal index can be used, it wastes a lot of space for nulls you are probably not going to query against.
如果使用普通索引的话，即使你并不打算对它进行查询，它也会因为null值浪费大量的空间。
It is calculated through the translation of casualty and direct loss into a normal index, which is a method of simplicity and applicability.
灾级大小是将一次灾害中死亡、伤害和直接经济损失数折算成规范化指数后计算出来的。其方法简单易行，且适用性强。
Normal index was established and thempthod was applied to the diagnosis of glaucoma, cataract and the diseases of cystoid. The reultsshowed that the method was very helpful to the diagnosis.
建立了本室选定的物理参数下的正常值，并对眼科常见疾病青光眼、白内障、黄斑区病变等进行检测，结果证明本检测法对上述疾病的诊断具有重要参考作用。
In one study of oral contraceptive pills, women with a body mass index (BMI) in the overweight range (a BMI of 25 or more) had a higher risk of pregnancy than those in the normal weight range.
有一项针对口服避孕药片开展的研究发现，体重指数(BMI)达到超重范围(BM I值等于或大于25)的女性比体重指数正常的女性更容易怀孕。
Being aerobically fit was far less important than having a normal body mass index in preventing the disease.
有氧健身在预防疾病方面，远不如拥有正常的身体质量指数重要。
She has a body mass index (BMI) of 20—in the normal range, according to the Centers for Disease Control.
其身体质量指数是20，根据疾病控制中心数据显示，完全符合标准。
In the normal flow, the MIML is input into the indexing step and a text index is created.
按照通常的流程，首先将MIML作为输入提供给索引构建步骤，创建一个文本索引。
Normal vector points up. Imagine that you put your thumb along c, your index towards s and then your middle finger points up.
法向量向上，想象你把你的大拇指沿着C放，食指指向s，那么你的中指就会向上。
The researchers found that each unit increase in body mass index (BMI) was associated with a 6 percent lowered risk for normal-tension glaucoma.
研究者们发现，体重指数（BMI）每增加一个单位，患正常眼压型青光眼的风险就降低6%。
Results The CPB model of 10 rats was very successful, and every physiological index was normal.
结果10只大鼠顺利建立CPB模型，CPB期间各项生理指标保持正常。
Go to the Index Search, Index, advanced page, and set the advanced parameter, to one of the following values (default is Normal).
转到IndexSearch、Index、Advanced页面并将高级参数设置为以下值之一(默认情况下是正常的)。
Overweight and obese primary school pupils of the lung capacity is higher than normal weight, while the vital capacity index was significantly lower than the normal weight students.
超重、肥胖小学生的肺活量高于正常体重小学生，而肺活量指数明显低于正常体重小学生。
The transmission quality index of mechanism is also discussed in this paper and a normal formula of transmission quality index for the general basic mechanisms is obtained.
本文还对机构的传动质量指标进行了探讨，得到了能适用于一般基本机构的传动质量指标公式。
Methods: Gastrointestinal propulsion rate was taken as an observed index in normal mice.
方法：以正常小鼠为观察对象，以胃肠推进率为观察指标。
Objective To establish the normal range of reticulocyte percentage and reticulocyte maturity index in healthy people and to compare it with anemia patients.
目的建立本地区健康成年人群网织红细胞百分率及网织红细胞成熟指数的正常参考值，同时与贫血患者群进行比较。
After the oil emulsification of ASP flooding, the production index of oil well reduces, but the emulsification has not serious effect on the normal production of oil well.
三元复合驱原油乳化后，油井的产能指数下降，但乳化对油井正常生产没有造成严重后果。
The pre-competition training maintains at a higher level with the normal biochemical index and weight change, and the fine nutrition condition.
赛前运动员的训练维持在较高水平，生化指标与体重变化正常，营养状况良好。
Old people is dazed, flabby, blood pressure is normal, each index is normal, why can you still faint so that cannot walk? urgent.
老年人头昏，没气力，血压正常，各项指标都正常，为什么还是会昏得无法走路啊？(急)。
A set of reciprocal introgressive line populations was used to study phenotypic index, physiological index and yield characteristic of rice under normal and low-N conditions.
同时利用一套双向导入系群体，分别在正常和低氮条件下考察相应形态指标、生理指标和产量性状。
The myofibrillar protein extraction rate can be used as an important index to distinguish PSE and normal pork.
肌原纤维蛋白质抽提率可作为鉴别P SE肉与正常肉的重要指标。
At present the index that used in evaluating transit network service level is normal performance index usually, it already can't satisfy the request of planning and management.
目前用于评价公交网络服务水平的指标多为常态性能指标，己经难以满足规划和管理的要求。
Sensitive index of insulin in model group was lower than that in normal control group and pingtang recipe group 16 weeks after modeling P < 0.01.
胰岛素敏感指数：造模后16周模型组明显低于正常对照组和陈汤方加减组（P<0.01）。
In normal subjects, mixed meals based on low-glycemic index foods lead to a reduction in postprandial glycemia.
编译在正常受试者中，主要以低糖指数食物为主的混合饮食可导致餐后血糖降低。
Overall, if deaths and complications are added up to make a "Maternal mortality and morbidity index", risks to mothers in the Caesarean group were 60 per cent lower than in the normal birth group.
因此，如果将死亡率和并发症来算成一个‘围产期死亡率和并发症指标’，那么这些风险于剖腹产产妇，低于正常分娩产妇的60%。
The blood coagulation index in other cancer groups with no liver damage is normal. It has no marked difference compared with the normal group (P>0.05).
其他无肝损伤的各癌症组血凝指标正常，与正常对照组无显著性差异（P>0.05）。
Results Faith in disease and belief in disease were both lower than normal standards, the index of doubt in disease fell in the normal, but their psychological orientation was higher.
结果疾病信念、疾病确信方面都低于正常范围，心理取向高于正常范围，疑病指数在正常值内。
Objective To analyze the correlation between hyperuricemia and non-high density lipoprotein cholesterol and atherogenic index of plasma in a normal population.
目的探讨体检人群高尿酸血症与血致动脉硬化指数、非高密度脂蛋白胆固醇水平相关性及意义。
Soil water variation structure in normal farmland and in reclaimed land by filling gangue and flyash was studied by taking the soil water capacity and variability as a synthetical index.
以土壤含水量作为反映土壤特性的综合性指标，研究了充填煤矸石复垦地、充填粉煤灰复垦地和未塌陷区对照地的含水量变异的结构性。
Objective to explore the normal value of left ventricular end-diastolic pressure (LVEDP) and left ventricular diastolic index (LDI) measured by reconstructed impedance cardiogram (RICG).
目的探讨重建心阻抗图测定左室舒张末期压(LVEDP)和左室舒张指数(LDI)的正常值。
The performance evaluation of corporate mergers and acquisitions and foreign scholars commonly uses index of non-normal earnings and accounting empirical study.
国内外学者对企业并购的绩效评价通常采用非正常收益法和会计指标法进行实证研究。
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