Has introduced the principle of the air-gap torque method, give the hardware of the ventilator efficiency testing system and illustrated the efficiency testing process.
介绍了气隙转矩法的工作原理，给出了通风机效率现场测试系统的硬件组成，并阐述了效率测试过程。
The repair of ventilator axle journal with serious wear was achieved by using the method of laser cladding.
采用基于激光熔覆的方法实现了大磨损量的风机轴颈的修复。
The paper introduces the main ventilator in certain mine about test method for its properties and result, and concludes the characteristic of measuration.
针对某矿井主通风机，介绍了性能测试的方法及结果，总结了测定的特点。
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