ductless

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Used in ducted and ductless range hoods and over the counter microwave ovens.
使用在有和无管道式抽油烟机以及柜式微波炉中。
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As an important component of the ductless inductive ventilation system, the jet inducted fan is used more and more widely in ventilation system of underground garage.
射流诱导风机作为实现射流诱导通风方式的主要产品之一，在地下车库等通风系统中得到广泛的应用。
This paper describes newly technology trend of component mounter and green technology of ductless reflow furnance.
概述了元件安装机的最新技术动向和无通风管道再流焊炉绿色技术。

The expansion incorporates a fully-automated assembly line for air handling units and four production lines for ductless air-conditioning and heating systems.
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We have ductless evaporative cooling system with no air conditioning.
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