An index with many key columns is called a wide index.
具有许多键列的索引称为宽索引。
A wide index is frequently associated with a large key length.
宽索引的键长度通常较大。
Other health benefits packed into berries: They're rich in a wide variety of antioxidants, low in calories, and even have a low glycemic index (shown to better maintain steady blood sugar levels).
浆果对健康的益处还有很多：它们都富含多种抗氧化剂，低热量，并含有较低的甘油指数，可以更好地维持稳定的血糖水平。
When hope in a wide temperature range of use, transmission medium viscosity index should be higher.
当希望在某一较宽的温度范围内使用时，输送介质的粘度指数应该高些。
Conclusion The axis of "no man's land" can be used as a index of differential diagnosis of wide QRS complex tachycardia.
结论无人区电轴可以做为宽qrs波群心动过速鉴别诊断的一项指标。
The wide environment system consists of ambient, clothing and human, in which the clothing comfort is influenced by temperature and relate humidity and other physical index of ambient.
环境、服装、人体是一个统一系统，环境中温湿度以及其他物理指标的变化对人体着装舒适性产生显著影响。
Although easily available and searchable on-line, the CFR 21 is a vast document covering a wide range of subjects but contains no index.
虽然容易得到，网上搜索，病死率21是一个巨大的文件，涵盖的学科范围广泛，但不包含索引。
The new technique features a good technical economy index, and possesses wide spread value.
新工艺具有良好的技术经济指标和广泛的推广使用价值。
When you want to use in a wide temperature range, medium viscosity index should be higher.
当希望在某一较宽的温度范围内使用时，输送介质的粘度指数应该高些。
Through the analyses of the grid index and the spatial object index, a structure of the spatial object boundary index based on wide grids is put forward.
在充分分析格网索引和空间对象范围索引的基础上，提出一种基于粗分格网的空间对象范围索引结构。
The normalized port to port reliability index weighted by transmission capacity of communication network is very fit to evaluate modern high speed and wide band communication networks.
归一化传输容量加权通信网端到端可靠性指标，非常适合评价现代高速宽带通信网络。
Sodium tellurite glasses are considered as potential candidates for non-linear optical applications because of high refractive index values and wide infrared transmittance.
亚碲酸盐玻璃一般具有较高的密度、较高的折射率、较宽的红外透过性能，同时具有较好的介电性能，一直作为非线性光学材料进行研究。
The effect induced by the increment of refraction index and dispersion of glass in the wide bands FT(Fourier Translate) lens were introduced.
介绍了宽谱段傅里叶变换镜头中光学玻璃的折射率、色散变化对系统的成像质量的影响。
Most anticancer drugs are characterized by a narrow therapeutic index, wide inter patient variability of pharmacokinetic parameters and high toxicity.
许多抗肿瘤药具有治疗指数低的特征，其药代动力学在病人个体间存在较大的差异，而且具有较高毒性。
Test shows that the system starts in less time with stable performance as well as wide application, the adjustment precision is up to 0.5% in conformity with the index of auto regulating device.
测试结果显示：该系统启动速度快，运行平稳，调速范围大，调速精度达0.5%，达到了出条速度很高的自调匀整装置的指标要求。
The paper gives. theory of assessing reliability index for protective type electrical apparatus, this has a wide...
本文为建立保护类电器可靠性考核指标提供了理论依据，对提高电器可靠性水平有重要意义。
A novel wide-angle three-branch optical waveguide with equal power division is proposed, which contains three high-index microprisms.
本文提出了一种新型的宽角度等功率分配三分支波导结构，此结构包含三个高折射率微棱镜。
XH-SBR SMD LED fluorescent light with high brightness SMD LED AS light source lamp beads , green , no flicker , long life , high color rendering index , color temperature optional wide range .
SBR贴片式系列LED日光灯采用高亮度贴片式LED灯珠为光源，绿色环保、无频闪、寿命长、显色指数高、色温可选择范围宽。
In the Shef index, firewood is replaced by electricity and rice by wheat flour to make it more relevant for today's China as well as a wide range of countries.
在上肢指数柴草，取而代之的是电力和大米面粉，使之更适合今天的中国以及作为一个广泛的国家。
After reaching a turbulent state, the system continues its evolution which exhibits that the energy spectrum index is not a constant instead of a wide range of changes in time.
模拟中，系统逐渐达到湍流状态，随着系统的不断演化我们发现如下事实：能谱指数随时间并不是不变的，而是在较宽的范围内变动；
To have a good characterization of heavy hydrocarbons, the aromaticity correlation index has been developed on the basis of a wide range of data.
为更好地表征重烃，以广泛的数据为基础，开发了芳香度关联指数aci。
By this method the refractive index in a wide range ultraviolet, visible and infrared can be measured automatically.
可对紫外、可见，红外光谱折射率作自动精密测量。
It is for the practice and comparison of regional flood research that the idea of Basin-Wide Flood(BWF)is further proposed. Moreover, the index and grades of BWF for last 500-year period in Hua…
为了使区域洪涝研究更为具体和可比，本文在分析区域洪涝指标的基础上．提出了流域性洪涝的概念，并以《中国近五百年旱涝分布图集》为基础，建立了淮河流域500年流域性洪涝指标序列及其等级。
A wide range of trading products from Forex, precious metal, energy products to US stocks, future index with a fixed spread and leverage rate 1:150 have small risks and stable returns.
交易品种繁多，外汇、金属，能源，更有美股期指任君选择。 固定点差，固定杠杆150倍，风险小，稳定收益。
A wide range of trading products from Forex, precious metal, energy products to US stocks, future index with a fixed spread and leverage rate 1:150 have small risks and stable returns.
交易品种繁多，外汇、金属，能源，更有美股期指任君选择。 固定点差，固定杠杆150倍，风险小，稳定收益。
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