红外光谱仪已广泛地应用于宝石研究与鉴定，其中直接透射技术使用最广泛。
The direct transmission technique is the most common method in measuring infrared spectrum of gemstone.
红外光谱仪已广泛地应用于宝石研究与鉴定，其中直接透射技术使用最广泛。
The infrared spectroscope has been widely used in gem research and identification. The direct transmission technique is the most common method in measuring infrared spectrum of gemstone.
运用数据集群技术，建立了我国不同时空尺度直接透射率的估算模式，对比分析了不同模式的拟合精度。
Based on data integration technique, direct transmittance models for different temporal and spatial scales were established and the accuracy of different models was analyzed thoroughly.
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