The hot air is always carried to the furnace by a powerful turboblower, through the hot blast main, bustle pipe, bootleg, blowpipe and tuyere.

热风由功率强大的鼓风机通过热风总管、环形风管、风口小弯管、直吹管和风口不断鼓人高炉。

youdao

Dust sample in blast pipe was collected when centralized air ventilation system was off, the total content of the bacterium and fungus was examined.

集中空调关闭期间，采集集中空调通风系统送风管内的积尘样品，检测其细菌总数、真菌总数；

youdao

The blast was caused by fuel leaking into a dry bay and igniting on contact with a hot air pipe.

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