Secondly, Desulfurization efficiency was influenced by different metal ions. The better desulfurization performance, the smaller radius of positivemetal ion;
其次，考察了金属离子对吸附剂性能的影响，发现金属离子半径越小，吸附脱硫性能越好；
2
The stream of positive particles that meets the surge of electrons from the cloud often arises from a tall pointed structure such as a metal flagpole or a tower.
来自云层的电子流与正粒子流相遇，而这些正粒子流通常来自于高而尖的结构，如金属旗杆或塔。
3
Similarly, in an ultracapacitor, when voltage is applied across the two metal plates (i.e. during charging), a charge still builds on the two electrodes—one positive, one negative.