Unverified83% confidenceDecision RuleTime unknown
探头灵敏度与抗干扰能力是核心体验差异:好的探头能在腹壁快速定位胎心且杂音小,劣质探头需反复移动、噪音大。使用时务必配合专用超声耦合剂(不能用普通润肤露替代),耦合不足会严重影响信号
1
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83%
Confidence
Long-term
Relevance
-
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