化学元素

• We have made a careful study of the properties of these chemical elements
  我们仔细研究了这些化学元素的特性。
• More information : english nation , element chemistry , italy code etc
  世界各国,化学元素,意大利区码等更多常用资料
• Relationship of cancer death rate in sichuan with chemical elements in soil
  四川省癌死亡率与土壤环境中化学元素的关系
• Biogeochemical characteristics of aquatic plant in fields peninsula , antarctic
  胎儿肺中化学元素的时序分布特征与营养生理意义
• Yet nature does not allow us to turn back the chemical and neural clock
  然而自然却不允许我们将化学元素与神经系统的时钟倒转。
• The significance of element abundances of rocks in the study of geochemical blocks
  岩石化学元素丰度在地球化学块体研究中的意义
• We have known over one hundred chemical elements , about 80 of them are metals
  我们已经知道有100种以上的化学元素，其中约有80种是金属。
• The compositions of chemical elements associated with dust particles from hunshan dake sandland
  浑善达克沙地沙尘气溶胶的化学元素组成及含量
• For the first time ever , scientists have been able to create a chemical element that can fight cancer cells
  科学家们首次研制出了抵抗癌细胞的化学元素。
• The tendency of chemical elements with similar positions in the periodic table to have similar properties
  周期律化学元素在周期表中有相似位置时具有相似特性的趋势