Individual cells are assembled into what are called stacks. 多个单电池单体组合起来,则成为所谓的电池组。
Abstract A series of polyester type and polyether type self mulsifying polyurethane were pre-pared by taking dihydoxylmethylopropionic acid as hydrophilic monomer. 摘要用二羟甲基丙酸作为亲水单体,分别合成了聚醚型和聚酯型的水性聚氨酯,并进行各种性能比较。