片语
Hyper Cardioid超心型指向
cardioid condenser[光]
cardioid design心形设计
cardioid uterus心形子宫
cardioid directivity心形指向性
cardioid motion心脏线运动
cardioid microphone
a directional microphone with a cardioid pattern of sensitivity
cardioid diagram[电子] 心脏形曲线图;[数] 心形特性曲线
cardioid condeser心脏形聚光器