An auxiliary ejector with as little blockage in the ducting as possible is placed behind the inlet of the diffuser duct . 一个辅助引射器,在通道中要以尽可能小的堵塞面积布置在扩压器进口之后。
Extractable ventilation rubber ducting of the fire retardant 抽出式难燃橡胶导风筒
V band couplings for ducting and piping . profile dimensions 导管和管道用形带连接器.外形尺寸
Marine rigid and flexible ducting 船用硬质和挠性空气管道
Ducting for ventilation equipment ; flanges ; series 1 ; angle flanges 通风设备用管道.法兰.系列1 .角钢法兰
Glass fibre fabric for ducting 玻璃纤维导风筒基布
Ducting and trunking and their accessories for underfloor electrical installations 地下电器设备用管道线槽及其附件
Ducting for ventilation equipment ; flanges ; series 3 ; flat and angle flanges 通风设备用管道.法兰.系列3 .平面法兰和角钢法兰
Ducting for ventilation equipment ; flanges ; series 2 ; flat and angle flanges 通风设备用管道.法兰.系列2 .平面法兰和角钢法兰
Specification for v - flange couplings for aircraft piping and ducting - metric series 航空用管道和导管用v形法兰联结器规范.公制系列