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。
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。
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。
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。
This difference in surface gravity is due to a number of factors - mass, density, and radius being the foremost.
地表重力的差异源于很多因素的影响——质量，密度，半径(这是最重要的因素)。
This difference in surface gravity is due to a number of factors - mass, density, and radius being the foremost.
地表重力的差异源于很多因素的影响——质量，密度，半径(这是最重要的因素)。
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