摘要：全球汽车市场的客户需求促使电脑恒温控制（也称自动空调系统）得以广泛应用于大多数车辆，从价格低廉的实用车型到彰显尊贵的豪华车型都配备了电脑恒温控制系统。随着产量的上升和价格压力的增加，系统供应商需要提高效率并降低材料成本以满足市场需求，同时实现利润。

摘要：To the editor：We read the article by Ma et al1 with a great *** aimed to investigate the potential correlation of red cell distribution width （RDW） with the severity of coronary artery disease （CAD） in a large Chinese cohort from a single *** concluded that the RDW level was significantly higher in patients with CAD than that in normal controls,and the baseline RDW level was an independent predictor for CAD and the severity of coronary stenosis.