词汇	phi-angle
释义	phi-angle 英'faɪ'æŋɡl美'faɪ'æŋɡlф角
随便看	variable polarization antenna variable pole variable-pole-speed motor variable population variable porosity variable porosity porous wall variable portion variable position catapult variable-position catapult variable-position cutter variable position valve variable potency ratio variable potential source variable power variable-power variablepower afocal variable power control variable power controller variable power eyepiece variable power eye piece variable power eye-piece variable power factor variable power laser emission variable-power lens Variable Power Speed Control