door of fire-check是什么意思 door of fire-check怎么读
door of fire-check的用法和样例
- What a fire-door does is delay the spread of a fire long enough for people to get out.
防火门的功能是拖延火势的蔓延以赢得足够的时间让人们逃脱。 - LianDa is a Company specializing in tubular motors for shutters, awnings,garage doors,fire shutters,blinds and screens userd in home and buildings.
联大是一家专业生产管状电机的制造企业，其产品广泛用于家用或商用的卷帘门，遮阳蓬，车库门，防火门，百叶窗和投影幕等设施。
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