发布时间:2025-01-20 20:58:41
1.防止水分散发,起到密封的作用;
2.防止食物在储存时失去原有鲜味;
3.隔离空气,防止食物氧化(受到感染);
你好 请问下地下室的消防机械补风系统应该设置哪种风机啊 和排烟是一样的还是怎样啊 谢谢了
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