多点频率特性
Multiple points frequency response
谐振频率点
self-resonance frequency (SRF
额定频率整定点
rated frequency’s setting point
风冷热泵户式中央空调室外温度分布频率平衡点辅助加热量
Air-cooled heat pump Residential central-conditioner Distribution frequency of outdoor temperature Balance point Supplementary heating load
拐点光频率方程
light frequency equation of inflexion
过零点瞬时频率
instantaneous frequency of cross-zero