福特近期开展的测试发现，基于丙烷（R290）的全二次回路热泵可提升暖通空调（HVAC）性能和车辆充电。
【英文原文】
原标题：Ford Declares R290 the ‘Best Option’ for Thermal Systems in BEVs
Recent testing conducted by Ford has found that propane-based full-secondary loop heat pumps improve HVAC performance and vehicle charging.
