insulation material短语⁷³³²⁸ 基本例句 绝缘材料 On this basis if the temporary surface insulation plates are improved and used as permanent insulation material the ideality of concrete dam without cracking will be realized. 若再把长期保温板改进为永久保温板，则可在增加工程费用不多的条件下实现混凝土坝的永久不裂。 cnki