Battery electric car battery should periodically check the electrolytelevel in use, timely check and supplement of the electrical condition of battery.
蓄电池电动平车蓄电池在使用中应定期检查电解液的高度，及时对蓄电池的存电状况进行检查和补充。
2
Objective it is probed into serum electrolytelevel and the relation between it and function of heart or lung of the senile patients with chronic pulmonary heart disease.
目的探讨慢性老年肺心病急性加重期血清电解质水平及与年龄、心肺功能的关系。
3
The level of electrolyte needs to be checked periodically, and distilled water needs to be added when it is low.