The four grades of density are shown in these mammogram images.
图中展示了这四个密度等级。
The storage density of a disk medium; storing four times the amount of information per disk as single density.
磁盘介质的存储密度，在这种密度下磁盘的信息存储量是单密度盘的四倍。
Figures released by the Office for National Statistics show that population density in England is already almost double that of Germany and four times the figure for France.
根据全国统计局发布的数据来看，英国人口密度几乎是德国的一倍、法国的四倍。
Four-stroke engines of this type with this same type of intake valve motion but with a supercharger to make up for the loss of power density are known as Miller cycle engines.
四冲程发动机本与此同进气阀运动类型的类型，但以使增压器的功率损耗密度，这些都是为米勒循环发动机众所周知的。
In general, the purely mechanical effects of the pubescence depend on four main characteristics of the trichomes: density, erectness, length, and shape.
一般来说，柔毛的机械作用取决于毛状体的四个主要性状：密度、直立性、长度和形状。
Coal maceral concentrates of high purity were prepared from four different rank coals by Density Gradient Centrifugation method.
经等密度梯度离心分离，从褐煤、长焰煤、气煤和贫煤四种不同变质程度煤中获得了高纯度的有机显微组分。
Then in part four, the quantities such as particle density, energy density at RHIC energy are calculated with these parameters' values.
然后根据最佳参数值计算RHIC能量下粒子系统中各种粒子的粒密度、能密度和熵密度等。
This paper discusses four aspects of the iterative detection of the MC-CDMA system, including equalization, feedback, channel estimation and the density evolution analysis of the MC-CDMA system.
本文从迭代检测的均衡、反馈、信道估计和密度演进分析四个方面展开讨论。
There isn't great difference in four aloes' density, the density of the whole leave juice is a little higher than that of gel juice.
四种芦荟全叶汁及凝胶汁密度相差不大，全叶汁密度稍高于凝胶汁密度。
Based on the technical conditions of the four major trunk lines, this article demonstrates the rational match between hauled weight, operating speed and traffic density.
本文根据四大干线的技术条件，论证了提速客货列车的牵引质量，运行速度，行车密度间的合理匹配。
Various grades of HDPE 's unique characteristics are the four basic variables of the appropriate combination of: density, molecular weight, molecular weight distribution and additives.
各种等级HDPE的独有特性是四种基本变量的适当结合：密度、分子量、分子量分布和添加剂。
A stratigraphic high resolution dipmeter tool that uses four dual electrodes on pads to record eight microconductivity curves for high-density dip calculations.
一种高分辨率地层倾角测井仪，极板上有四个双电极，为高密度倾角的计算提供八条微电导率曲线。
This paper introduces the availability of four wheat-straw processed by different method, put emphasis upon density, compression strength and castability of Flowing Straw-Cement composition.
本文介绍了经不同方法加工处理后四种麦秸秆的可用性能，着重研究了流动性秸秆水泥复合材料的密度、强度以及可浇注性。
It shows that electrodes material and distance, membrane, and NaCl density are four effective factors in acidic water electrolysis.
电极材质，离子膜，电极间距，氯化钠溶液浓度是影响酸性氧化电位水生成的重要因素。
The solution of this fractional order advection-dispersion equation is fractional stable probability distribution density with four parameters.
此方程的柯西问题的格林函数解是一分数稳定分布密度函数。
The soil density of control area of every soil layers of four sample plots in the meadow steppe and typical steppe is lower than the severe degeneration area;
草甸草原、典型草原样地各土层对照区土壤密度均低于重度退化区。
The results obtained show that radial profiles of the temperature and the density measured with the single probe are in agreement to those with a four-probe system.
测量的结果表明，利用单探针测量的主等离子体边缘参数与朗缪尔四探针测量结果基本一致。
Four kinds of amendments can improve soil physical properties. Soil bulk density decreased, soil porosity, permeability coefficient and field capacity increased under treatments.
四种改良剂均能不同程度的改善土壤物理性状，能降低土壤容重，提高土壤总孔隙度，加快渗透速度，增加田间持水量。
The feasibility of in-situ microfibrillar method on recycling poly(ethylene terephthalate)(PET) and high-density polyethylene(HDPE) mixtures was carried out by four repetitive extrusion.
研究了原位微纤化方法在回收聚对苯二甲酸乙二醇酯（PET）和高密度聚乙烯（HDPE）混合物方面的应用。
The least reach-mark-ratio of four pests densities was rat density.
四害密度控制率最高的为蚊，最低的为鼠；
Materials adopted in high-density pure cotton cloth, soft, breathable, comfortable, suitable for use of the four seasons.
里料采用高密度纯棉布，柔软、透气、舒适，适合四季使用。
Secondly, we investigate the energy density produced by a state vector which is the superposition of three single electron states in the Dirac field in the four-dimensional Minkowski spacetime.
然后，研究了在四维平直时空下三个单粒子态构成的量子态的负能密度。
In this paper, the time-resolved degenerate four-wave mixing in two-level system is treated rigorously with the density-matrix method.
本文用密度矩阵方法严格处理了在共振情况下二能级系统时间分辨简并四波混频问题。
In this paper, the time-resolved degenerate four-wave mixing in two-level system is treated rigorously with the density-matrix method.
本文用密度矩阵方法严格处理了在共振情况下二能级系统时间分辨简并四波混频问题。
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