The low sulfur tolerance of the catalyst with a low acid amount was attributed to the insignificance of the electron deficiency of the metal particles.
酸量过小的催化剂抗硫性差则与金属中心缺电子效应较小有关。
The fundamental, method and deficiency of quantitative electron crystallography have been described, further improvement for it was discussed.
阐述了定量电子晶体学测定晶体电荷密度分布的基本原理和方法、不足之处和改善途径。
But the fact that the excess bariums are responsible for electron emission may be reconciled with the deficiency of alkaline earth metals during life by the dynamical surface emission center model.
然而超额钡仍然是发射电子的泉源，可以通过动态表面发射中心模型而与寿命中碱土金属下降统一起来。
The effects of iron deficiency (ID) on the hair cells were studied in growing rats by scanning electron microscopic, auditory elec'crophysiological and histochemical techniques.
应用扫描电镜，结合听觉电生理学和酶组织化学方法研究了缺铁对大鼠听毛细胞结构与功能的影响。结果发现，缺铁组大鼠耳蜗生物电位的产生受到抑制；
The effects of iron deficiency (ID) on the hair cells were studied in growing rats by scanning electron microscopic, auditory elec'crophysiological and histochemical techniques.
应用扫描电镜，结合听觉电生理学和酶组织化学方法研究了缺铁对大鼠听毛细胞结构与功能的影响。结果发现，缺铁组大鼠耳蜗生物电位的产生受到抑制；
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