短语词组短語heat -spot 雀斑heat treatment on spot 現場熱処理winding heat spot 繞組熱點heat flux hot spot factor 熱流密度峰值因子laser spot heat 激光加熱fixed laser spot heat source 靜置激光點熱源spot type heat detector 點型感溫探測器spot of heat 熱點 返回 heat spot