He is charging a storage battery.
他在为充。
He is charging a storage battery.
他在为充。
In this paper,a new-type thickening propenoic acid multipolymer used to be glassfibre bulkhead glue for storage battery was studied.
本文研究一种用作纤隔板胶的新型具有增稠性丙烯多元共聚物。
Four new materials,such as carbon suspension,sodium sulfonate of polyoxyethylene allyl glycidyl nonyl phenyl ether,vanillyl alcohol,vanillin,etc,in lead-acid storage batteries were reviewed.
综述用碳素悬浊液的制备与作用方式以及在使用聚氧化乙烯烯丙基缩水甘油基壬基苯醚的硫酯钠盐、香草醇和香草醛的目的及作用机理。
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