Once a clinician determines that a patient has many risk factors, bone mineral density testing should be performed.
一旦医生确定病人有许多危险因素，骨密度测试应该进行。
This paper introduces the work principle of gas density testing system based on SCM AT89C51, and gives the hardware structure and software flow of testing system.
本文介绍了基于AT 89 C 51单片机气体浓度测试仪的工作原理，给出了测试仪的硬件结构及软件流程。
The principle, structure of the NBT-1 model of density adjusting unit were introduced. It can form a complete set with the density testing meter to control the density of the paper pulp.
介绍NBT 1型浓度调节器的结构、原理，该调节器与浓度变送器配套，可以控制纸浆的浓度。
A new standards of linear density testing method of synthetic filament yarn is analyzed and contrasted against the old one in this paper, and also introduced its application with a practical example.
分析比较合成纤维长丝线密度试验方法标准新旧版本的区别，并以实例介绍该标准的运用情况。
For instance, if our tests uncover a sudden and unexpectedly large defect density, we might declare the build broken, abandon testing, and have the architecture team review the build.
例如，如果我们的测试揭示了一个突然的且出乎意料的缺陷密度，我们可能宣称该构建是不健全的，放弃测试，并让架构团队检查此构建。
It is always a challenge to testing high density PCB for researchers in the high automatic manufacture field.
在高度自动化的生产现场如何检测高密度pcb一直是研究人员的难题。
Testing hardened concrete - Part 7: density of hardened concrete.
硬化混凝土试验。第7部分：硬化混凝土密度。
Testing and analyzing of the profile density of wood based panel are important in controlling the quality of product.
剖面密度的测定与分析是人造板质量检验与控制的重要手段。
The test proves that the density of ion flowing and the ratio of ions to neutral particles are important testing coefficients.
试验证明，试样台上的离子流密度及离子与中性粒子的比例是重要的试验参数。
We also assemble a set of permeability testing equipment, by which we study on the effect of density, thickness and air pressure on the relative permeability.
并利用自行组装的测试设备研究了柔性石墨板密度、厚度以及空气压力差对相对透气系数的影响。
The difference between amount per unit volume and bulk density of refractory castable in definition is pointed out, a testing method of amount per unit volume of refractory castable is introduced.
指出了耐火浇注料单位体积用量与体积密度定义上的区别，介绍了一种测试耐火浇注料单位体积用量的试验方法。
Based on geological, gravity and magnetic, seismic, logging, physical properties of rocks and testing data, the spatial variation pattern of density in Dongying sag is established.
本文以地质、重磁、地震、测井、岩石物性及分析测试资料为基础，首次建立了东营凹陷密度的空间变化模式。
By using binomial principle, not only the relation between dot density's change and dot area coverage's change is found out, but the testing proofs dot density is figured out.
通过二项式拟合定理，找出了网点密度的变化与网点面积率的变化之间的关系，并进一步计算出了检测样张的网点密度。
It is required for designing compaction density in the field to have both testing results from the relative density test and the Proctor compaction tests.
本文通过大量的粉煤灰击实试验和相对密度试验，分析了试验方法对设计密度的影响。
Electrical testers are widely used, but they are facing challenges from high-density PCB assemblers and very high frequency boards' testing tasks.
但是，电气测试仪将面临高密度pcb和甚高频电路测试的挑战。
The factors of flammability testing of no-halogen flame-retardant PE were investigated by testing methods of the oxygen index and the smoke density.
采用氧指数和烟密度分析方法，对无卤阻燃聚乙烯试样燃烧性能测试的影响因素进行了分析。
Through the comparison, An express and effective method of testing the maximum dry density of Rockfill material has been put forward.
通过相互对比，提出了一种快速、合理的方法来确定填石料室内的最大干密度。
In this paper, the effect for thickness of shell on measuring of charge density was studied in nondestructive testing and the relation of thickness of shell with scanning value was found.
研究了在应用无损检测技术对炮弹装药密度进行测量时壳体厚度对炮弹装药密度检测精度的影响，并找出了壳体厚度与扫描值的关系，通过对壳体厚度的修正，其测量精度可得到较大的提高。
By this formula, the packing density of the different size distributions of slag and its water requirements were calculated and found to be the same with the testing results.
用该公式计算上述不同粒径分布的矿粉浆体的堆积密度及需水量，计算结果与试验值基本吻合。
The paper introduces theory and design of high density resistivity prospecting testing sys-tem, especially the programming multiplexor in its key components.
本文详细介绍了高密度电阻率测试系统，特别是其关健部件程控式多路转换器的原理及设计。
The dynamic method for testing the density of soft subsoil by instant hammering is fully a new research subject.
利用瞬态锤击法对广泛存在的软土路基或地基土进行密实度动态测试方法研究是一个全新的课题。
This tester is controlled by the computer, high-density performance testing software is easy to operate even received favorable comments from many customers.
泡棉应力测试仪由电脑软件控制，高密度测试软件易于操作的性能更受众多客户好评。
This paper presents testing results on a wide range of fly ash, after analyzing the effects of test methods on the resulted density.
本文通过大量的粉煤灰击实试验和相对密度试验，分析了试验方法对设计密度的影响。
The result of testing show that adaptive limiting method and probability density function method are good.
测试结果表明，后两种方法效果比较好。
A number of data is compared with calculation values through collection and testing. In conclusion, all kinds of calculation methods for density have some applying or refer ring value.
实测和收集了大量数据来验证、对比各种计算方法的准确性，结论认为各种卤水密度计算方法计算值均接近实测值，具有不同程度的应用和参考价值。
Since 2004, Yellow River Conservancy Commission has conducted large-scale prototype testing of artificial density current for sediment ejection and obtained valuable primary data.
自2004年开始，黄委在小浪底水库进行大规模的人工塑造异重流排沙的原型试验，取得了宝贵的原始资料。
This paper introduces the work principle and structure of the gasoline density Control system based on SCM AT89C52, and gives the hardware structure and software flow of testing system.
本文介绍了基于AT89C52单片机控制的油气浓度监测系统的组成及工作原理．给出了系统的硬件结构及软件流程。
After immersing the gold omaments in a testing solution of organic solvents, the density of the gold omaments can be calculated from the change of weight due to buoyancy force.
通过测定黄金首饰在测量液中的浮力后计算密度再查表而得。
Used for testing the linear density of various yarn quickly.
用于快速测定各种纱线的线密度。
Through testing and analysing their basic properties, the result proves that their thickness, density, strength and elasticity of polyester filament fabrics can accord with the demand of inversion …
结果表明采用聚酯弱捻长丝织制的几种管状织物厚度、密度、强力与弹性达到了翻衬法管道修复技术的工艺要求。
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