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Oxygen was found to depress their fcc-sctransition temperature Tc from the normal value of 260K,as indicated by theminimum in the temperature-dependent permittivity ε′,and also enlarge the drop in ε′at the transition.The magnitudes of the downward shift in Tc and the drop in ε′were roughly proportional to the O2 occupance at octahedral lattice sites,as estimatedfrom the resonance heights distribution.

发现氧的存在降低了以介电常数ε'温度谱极小值为标志的有序无序相变温Tc(正常相变温度为260K)，并且增大了ε'在相变前后的变化幅度，Tc的下降值和ε'的变化量Δε'近似比例于八面体位置氧的占据率，氧的占据率可以从核磁共振峰高的分布获得。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。