因此，测定法较计算法能更精确地反映能量在生态系统中的流动。
Hence, in order to accurately evaluate the energy flow, the method of energy measurement should be recommended.
国家骨质疏松基金会说，一种叫作双重能量X 射线吸光测定法，或是DXA是用来诊断骨质疏松症的最佳途径。
The NOF says a test called Dual-energy X-ray absorptiometry, or DXA, is the best test for osteoporosis. DXA uses radiation from x-rays.
国家骨质疏松基金会说，一种叫作双重能量X 射线吸光测定法，或是DXA是用来诊断骨质疏松症的最佳途径。
The NOF says a test called Dual-energy X-ray absorptiometry, or DXA, is the best test for osteoporosis. DXA uses radiation from x-rays.
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