induced draft是什么意思

用法例句

Presents the features in the air conditioning and ventilation system design and negative pressure ventilation,especially the principle and method for building function zoning and air supply and exhaust pressure gradient control.

介绍了该工程空调通风设计和负压通风方面的特点,特别是建筑功能分区、送排风压力梯度控制的原则和方法,并就传染病医院空调通风的设计方式进行了讨论。