词汇	first harmonical
释义	first harmonical 基波,一次谐波
随便看	rotary flow meter rotary flowmetre rotary flow metre rotary fluid clutch or coupling rotary fluid gearing of the hydrokinetic type rotary fluid machine rotary fluid power device rotary fluid pressure machine rotary flux compressor rotary flying crop shears rotary flying hot saw rotary flying shear rotary flying shears rotary folder rotary folder packaging machine rotary folder sheet rotary folder sheet, web rotary force rotary forced-air cooler rotary for forming screw caps in situ rotary forge mill rotary forging rotary forging forming rotary forging in one heat rotary forging machine