Bone is continually remodeled, and osteoporosis results from a reduction in bone mineral density as the bone renews itself.
骨骼在不断地进行再塑形，骨自身更新时骨骼的矿物质密度下降导致骨质疏松。
The reduction in size of components and circuits for increasing package density and reducing power dissipation and signal propagation delays.
减少元件和电路的几何尺寸，以达到增加电路的封装密度、减少功耗和减小信号传播延迟的目的。
The effects of electrode activation condition, current density, electrolyte temperature on electrolytic reduction are discussed.
讨论了电极活化条件、电流密度、电解液温度等因素对电解还原反应的影响。
To prevent reduction of bone density, we should perform between the heredity factor and environmental factor, which may be effective to prevent and treat osteoporosis.
要防止骨密度的下降，应从遗传因素和环境因素加以控制，可以有效的防治骨质疏松症。
Fade is a phenomenon where a noticeable reduction in density uniformity across the page occurs.
渐淡是一种在纸上可见的密度均匀减少的现像。
The reduction in size and increase in packing density of electronic components and circuit elements, resulting in less space, less power, and less delay in signal propagation.
减少电子部件和电路元件的尺寸并增加其组装密度，使其所占空间、电源消耗和信号传输的时延均降低。
This article mainly describes the influences on the reduction results, such as: the electrode material, electric current density, acidity of cathode liquor and initial temperature of feed liquid.
本文主要考察了电极材料、电流密度、阴极液酸度及料液初始温度对还原效果的影响。
The increase of standard density and the reduction of water content in the data of inspection on board have lowered the concern on the loss of standard volume.
船检数据中标准密度的增大与含水量的降低减缓了对标准体积亏损的关注。
The structural topology optimization method—variable density method is used to optimize the topology of an acoustic_box for interior sound pressure reduction.
基于变密度拓扑优化方法和声-结构耦合系统有限元模型，对四角固支箱体模拟的飞机座舱进行了减振降噪分析。
Strong earthquakes often occur in regions that are located between upheaval and subsidence of the Moho surface or density reduction and density increase of the interface.
地震往往发生在莫霍面隆起区与沉降区、密度减小区与增长区的过渡地带。
Under low packing density, convection is significant in shell-side flow, which is preferable for the reduction of dead zone area and the higher utilization of contacting area.
较低的封装分率下，组件壳程对流作用明显，有利于减少死区，充分利用膜接触面积。
If sequential pattern of grain reduction occurs, the density growth only gives information about the distribution of development induction period among grains.
顺序还原时，乳剂层的密度增长速率只是给出了颗粒间显影诱导期分布的信息。
Microwave volume packaging technologies are effective methods for realizing microwave modules miniaturization and weight reduction with high density and good performance.
微波立体组装工艺是实现微波组件小型化、轻量化、高组装密度和优良电气性能的有效途径。
The processes of directly recycling high density alloy by oxidation-reduction technique are investigated in details.
研究了氧化-还原法直接再生回收高密度合金切屑粉末的工艺技术。
The experimental results showed that the dislocation density increased with the cumulative reduction increased.
结果表明：随着轧制过程的进行，累积变形量的增加，位错密度逐渐提高。
A mapping-based dimension-reduction algorithm for probability density evolution analysis of stochastic structural responses is proposed.
提出了随机结构响应密度演化分析的映射降维算法。
Maintaining the accuracy of design is facilitated and a reduction in the maximum current density in the resonator is enabled.
有助于保持设计的精确度，并能够减小谐振器中的最大电流密度。
For the range of fluences studied, the observed effects result from a reduction in minority carrier lifetime in the IGBT and not from changes in the effective dopant density.
对于所研究的注量范围，所观察的效应是由于IGBT少子寿命减少造成的，而不是由于有效掺杂浓度变化所致。
The results of insect bioassay with peach aphid (Myzus persicae) showed that the transformed plants were aphid ? resistant evidenced by a 6 5.65% reduction in aphid population density.
虫试结果表明，转基因植株对蚜虫密度有明显的抑制作用，平均能抑制蚜虫密度为达65.65％。
High density closed-cell foam backing: sound reduction and comfort underfoot.
高密度闭孔泡沫背衬：吸收噪音并提供舒适的脚感。
The invention discloses a direct reduction generator for copper powder with low apparent density and a process thereof.
本发明公开了一种低松比铜粉直接还原发生器及工艺。
The study did not look at how alcohol may provide health benefits, but Streppel said it could be due to an increase in high-density lipoprotein (HDL) cholesterol, or to a reduction in blood clotting.
该研究没有考察酒精是如何发挥其益于健康的作用的，但Streppel称，这可能归功于增加高密度脂蛋白（HDL）胆固醇或缩小血液凝块。
These people had an average reduction in total blood cholesterol concentration of 5.1%, and a reduction in low-density lipoprotein, or so-called LDL or "bad" cholesterol, of 7.4%.
这组人血液中胆固醇总浓度有平均5.1%的下降，低密度脂蛋白或是LDL或是“有害的”胆固醇也下降了7.4%。
To avoid reduction of critical time step size due to the penalty parameter for contact force calculation, a local density factor is introduced.
为避免用于计算接触力的罚函数法中的罚因子影响显式仿真算法的稳定性 ，采用了局部质量密度因子来抵消罚因子的负面影响。
Vacuum carbothermal reduction of N2 -atomized 316l powders and effects of green compact density on hot extrusion and properties of extruded products were investigated.
研究了氮气雾化316L粉的真空碳热还原烧结规律和挤压坯密度对热挤压工艺和挤压材性能的影响。
The low density and highly porous substrate is highly absorbing, exhibiting noise reduction coefficients, NRC values of about 0.80 or greater.
低密度和高度多孔的基底是高度吸音的，从而显示出大于或等于约0.80的降噪系数，NRC值。
From the changes of bone density in the healing process, it showed that the bone mineral density and bone formation reached the peak at 2 weeks after fracture under the good reduction and fixation.
提示在良好的复位固定条件下，术后2周时骨折区域的骨密度值最高、成骨作用最强。
From the changes of bone density in the healing process, it showed that the bone mineral density and bone formation reached the peak at 2 weeks after fracture under the good reduction and fixation.
提示在良好的复位固定条件下，术后2周时骨折区域的骨密度值最高、成骨作用最强。
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