同关 meaning in Chinese

dong quan

The parameter is selected according to needing . according to analyzing , the power is cubic proportion to the speed , it is great remarkable to reduce the speed for releasing the load of suck - wind machine contrast to adjust the opening degree of baffle small
经分析得知，功率与速度的二次方成正比，因此引风机低负荷运行通过降速来实现，同关小风机入口挡板来实现相比节能效果是十分显著的。