... Interior decorating and display（室内装饰） Interior systems installation（室内安装） Jewellery making（珠宝制作） ...
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每间卧室内安装滴流通风设备提供背景通风。
Trickle ventilators are installed in each bedroom to provide background ventilation.
对于室内安装，重要的是要使得阀门容易接近，便于检测和维修。
For indoor installations, it is important that the valve be easily accessible to facilitate testing and servicing.
在室内安装一个秋千，这非常有助于感觉系统的发育。吊床也可以。
Install an indoor swing, which offers many sensory benefits. A hammock can work too.
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