事件：中国驻美大使馆将在美国全面实施赴华乘客核酸检测措施。为确保国际旅行安全健康，降低疫情跨境传播风险，经综合评估，驻美使领馆决定于美东时间9 月15 日0 时起在美国全面实施赴华乘客核酸检测措施。

上周机械指数上涨 2.86%，差于创业板指（4.76%），但强于上 证指数 （0.68%）和沪深 300（2.65%）。上周光伏设备(中信)（9.27%）、 仪器仪表Ⅱ(中信)（5.75%）等子行业表现居前；半导体设备(中信) （-4.07%） 铁路交通设备(中信)（-0.53%）表现较差。上

海外疫情促进全地形车普及从而吸引新增用户；2）乘国内消费升级春风，高性价比产品具有优势，推荐 有望成为玩乐类车辆全球龙头的春风动力。工程机械方面，2020 上半年疫 情影响减退，工程机械行业销量快速反弹。我们认为，地产基建投资轮动， 2020 年工程机械行业有望维持平稳增长

受益基建及地产投资延续，工程机械板块公司收入仍旧实现较好增长； 检测服务行业公司受到疫情影响，涨跌互现；光伏设备、半导体设备、锂电设 备行业受到下游强劲成长性带动，大部分实现成长趋势。

52 号文出炉提 高了申报城市的相关经济指标，要求严格落实资金。地方申报热情 不减，项目批复的趋势有望持续，未来经济增长有广阔空间。从国 家发改委批复的城市分布来看，主要集中在“胡焕庸线”以东，与 国内人口分布相适应。

本周沪深300指数上涨2.66% ，国防军工板块下跌1.74%，军工板块跑输0.92%。从行业来看，在中信30个一级子行业中，军工行业排名第27位。

Fibers are a source of reinforcement in engineering polymer composites, responsible for strength and stiffness. As in composites, stress is transferred from fiber to polymer and vice versa, and high mechanical properties are only acquired if appropriate compatibility exists between the matrix and reinforcement. The aviation industry generates around 2-3% of all human-induced Co2 emissions and 12% of the emissions of the transportation industry. The higher consumption of fuel in the aircraft leads to larger emissions of greenhouse gases and contributes to global warming. Moreover, the higher level of fuel consumption leads to higher cost, thus, increasing the operational cost of airlines. The aerospace industry is constantly focusing on producing fuel-efficient, lighter, yet stronger materials. Thus, the industry has shifted from using aluminum, steel, and titanium to composites. Currently, the use of composites has reduced around 50% of the structural weight of the aircraft, thus, increasing the fuel efficiency to around 20% and reducing the noise by around 5%, as well as decreasing the maintenance cost by around 30%.