Bone mass density; Elderly people; Osteoporosis.
骨密度；老年人；骨质疏松。
The gravity field out of the earth depends on the interior mass density distribution of the earth.
地球外部重力场是由地球内部物质分布决定的。
The strength of the particles are high, the mass density is increased more apparently compare to other method of granulation.
颗粒强度高，堆积比重的提高较其它造粒方式都更为显著。
Hence, the rest-mass of the neutrino being non-vanishing would influence greatly the mass density and further the evolution of the universe.
因此，中微子是否具有静止质量，将极大地影响着宇宙中的质量密度，从而影响着宇宙演化的进程。
The dynamic mass density can even be negative for the locally resonant sonic materials, as demonstrated both experimentally and theoretically.
实验和理论显示，对于局域共振声学材料而言，动态质量密度甚至还会变成是负的。
It is proved that the method is correct by comparing with the theoretical results of a simply-supported beam with random mass density and section diameter.
用一个具有随机质量密度和截面直径的简支梁的理论结果，验证文中方法的正确性。
Objective: To observe the effect of embedding thread at Pishu(BL 20) and Shenshu(BL23) on bone mass density(BMD) and pain in the female of primary osteoporosis.
目的：观察脾俞、肾俞穴位埋线对原发性骨质疏松妇女骨密度及疼痛的影响。
The partial testosterone replacement therapy in aging men could elevate the bone mass density, but the advantages and the disadvantages should be observed further.
老年人部分睾酮替代治疗可提高骨密度，但其利弊需进一步观察。
Undisturbed earths gravity field under the status of hydrostatic equilibrium is parallel gravity field, and its distribution of mass density is spherically Symmetric.
无扰动的流体静力平衡状态下的地球重力场是平行重力场。
CONCLUSION Genistein could improve the bone mass density, biomechanics and correlated biochemical indicators ovariectomized rats and could be used for osteoporosis treatment.
结论染料木素对模型动物的骨密度、骨生物力学及相关生化指标都具有改善作用，具有较好的抗骨质疏松作用。
The effect of the rise of ground water level was simulated by increasing the mass density of pore water in the soil elements between the initial and targeted ground water levels.
通过逐步改变初始和终止地下水位间土单元中孔隙水的密度模拟地下水位上升的效应。
Based on the measured data from the winter wheat fields in Zhengzhou of Henan Province, the vertical distribution of root length density(RLD)and root mass density(RMD)were analyzed.
根据在郑州进行的冬小麦根系田间实测资料，研究了根长密度和根质量密度在砂壤土中的垂直分布。
To test the technique, researchers compared measurements of bone thickness at the femur, hip and spine using the gold standard approach of bone mass density, and their new technique.
为了验证这项技术，研究者应用金标准的方法和他们的新技术比较了股骨的骨厚度，髋骨和脊柱骨。
According to the law of mass conservation the incremental mass density can be inferred from the divergency of the scalar unperturbed mass density and the vectorial displacement field.
由质量守恒定律，质量密度增量来自未挠动的质量密度的散度和位移矢量场。
The correlation between mass density and refractive index is analysed on the basis of a model comprising compact grains (i. e., amorphous or crystalline) and pores filled with air or water.
建立了由微小颗粒(无定形的或结晶的)和填充空气或水的小孔构成的模型，在此基础上分析了质量密度与折射率的相关性。
Astronomers know that Pluto and Triton have nearly the same size, mass, and density.
天文学家们知道冥王星和海王卫一拥有几乎相同的体积、质量和密度。
It is nearly identical to our own planet and bulk properties such as mass, density, and size.
它几乎与我们自己的行星和体积属性相同，包括质量、密度和大小。
So, you can get the mass of a flat object with density.
因此，可以通过密度求一个平面物体的质量。
The density for a flat object would be the mass per unit area.
一个平面物体的密度是每单位面积元的质量。
Since density is mass divided by volume, the relative densities and relative sizes give the relative masses.
由于密度是质量除以体积，相对密度和相对大小给予相对群众。
But if, actually, it has varying density maybe because it is some metallic thing with various metals or with varying thickness or something then you can still get the mass by integrating the density.
但如果，密度可能是变化的，因为它是许多金属的混合物，或者厚度在变化等等，但你仍然可以通过对密度积分得到质量。
Strength training has been proven to increase bone density, increase lean muscle mass, improve posture, and reduce the risk of injury.
已证实，力量训练能增大骨质密度，增加瘦肌体积，改善姿势，减少损伤的风险。
The control group showed a decrease in soleus muscle mass and strength, the development of insulin resistance, and a loss of bone mineral density and resistance to breakage.
控制组的老鼠表现出比目鱼肌质量和力量下降，胰岛素抵抗上升，骨密度和抗折能力降低。
We knew the density of steel, and so you can figure out the mass, just take my word for it.
我们知道铁的密度，所以你能算出质量，相信我说的。
Physical constraints (mass and density) may also require modifications in machines such as automobiles and airplanes.
物理约束(体积和密度)可能也要求修改机器设备，如汽车和飞机。
Knowing both its size and its mass, he wasthen able to calculate its density, and thus make a plausible guess about itscomposition.
知道了它的大小和质量，并能求出密度，进而可对其成分进行估测。
If you have a problem asking you to find the center of mass of something and you have no information about the density, assume it is uniform.
如果一个问题，需要知道某物的重心，而又不知道其密度，就可以假设它是个常数。
The gap between them will change as the ships pass over regions of higher and lower mass, providing clues to the density of the subsurface moon.
两个飞行器间的距离会随着飞船经过的区域的密度高低的变化而改变，为月球表面的密度提供线索。
You are shrunk to the height of a nickel and your mass is proportionally reduced so as to maintain your original density. You are then thrown into an empty glass blender.
假设你被缩小到一枚硬币那么大，你的质量也同比例缩小以保持你的密度不变。
You are shrunk to the height of a nickel and your mass is proportionally reduced so as to maintain your original density. You are then thrown into an empty glass blender.
假设你被缩小到一枚硬币那么大，你的质量也同比例缩小以保持你的密度不变。
应用推荐