Wherein, it comprises fan and motor for absorbing air and forcing air to flow;

本发明的真空吸尘器包括吸入空气后强 制空气流动的风扇-电机组件；

youdao

According to mine the total resistance and a reasonable choice of the total air volume of fan and motor to meet the security, economic, reliable requirements.

根据矿井总阻力和总风量选择合理的风机和电机，使其满足安全、经济、可靠的要求。

youdao

About the supply voltage, frequency, capacity factor of the fan and motor, specification of coil pipe, kinds of humidifier, form and efficiency of air filter, caliber and direction of pipe and etc.

对风机及电动机的电源电压、频率、功率，盘管规格，加湿器种类，空气过滤器形式及效率，配管口径及方向等有要求时请注明；

youdao