Installation easily: There is no need to install ventilation system under the ground.
在地板下无需安装通气和通风系统。
Advantages: low cost of foundation construction installation, easy maintenance, good ventilation, simple maintenance, no water.
【优点】：基础施工费用低安装，维修方便，通风良好，维护简单，无积水。
Advantages: low cost of foundation construction installation, easy maintenance, good ventilation, simple maintenance, no water.
【优点】：基础施工费用低安装，维修方便，通风良好，维护简单，无积水。
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