许多骨密度测量方法已厂泛地用于骨质疏松的诊断、骨折危险性的预测和骨质变化的监测。
Methods of bone mineral measurement have been widely used for the diagnosis of osteoporosis, the predicting fracture risk and monitoring bone changes over time.
用各种测量方法重新测量后，冥王星变轻了、变小了，这时候天文学家才意识到冥王星实际上还不如月球大，并且密度也很小。
With each new measurement, Pluto got lighter and tinier, until astronomers realized that the object is in fact smaller than Earth's moon and has a very low density.
对直流TIG电弧阳极板表面电流密度的测量方法——分离极板法和探针（自制）法进行了分析比较。
The measuring methods of D C TIG welding arc anode sheet surface current density split sheet method and probe (made by ourselves) method were analysed and compared.
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