【摘 要】
:
世界最大太阳能飞机——瑞士制造的“太阳驱动”飞行26小时后,于当地时间7月8日9时在瑞士帕耶那机场降落,成功完成首次昼夜试飞。这是世界上首次进行太阳能飞机的夜间试飞。
论文部分内容阅读
世界最大太阳能飞机——瑞士制造的“太阳驱动”飞行26小时后,于当地时间7月8日9时在瑞士帕耶那机场降落,成功完成首次昼夜试飞。这是世界上首次进行太阳能飞机的夜间试飞。摄/于洋西部大开发工作会议举行中共中央、国务院召开的西部大开发工作会议7月5日至6日在北京举行。胡
26 hours after the world’s largest solar powered aircraft, the Swiss-made “Solar-driven” flight, landed at the airport of Payena, Switzerland, at 9:00 on July 8 local time, successfully completing its first day and night flight test. This is the first night-time test of a solar powered plane in the world. Photo / Working Meeting Held in Western Conference for the Development of Western Region The CPC Central Committee and the State Council held the Working Conference on Western Development in Beijing from July 5 to 6. Hu
其他文献
Titanium-supported nanoporous palladium catalyst(Pd/Ti) was prepared by a hydrothermal method using PdCl2 as a precursor,ethylenediamine tetraacetic acid(EDTA)
山西省二期黄土高原水土保持世界银行贷款项目执行6年来,围绕项目目标,坚持科学治理,在实现扶贫和改善生态环境两大项目目标的同时,实现了项目管理机制的转变,为新时期水土保
坡面回转这个动作是在斜坡上完成的。常用于山地比赛中,在技巧车的表演中也常常见到。它动作优美,出人意料,惊险,有悬念,很受车友们的欢迎。准备:1.车辆以技巧车为最好,越野
The behavior of the mixed amphiphilic drug promethazine hydrochloride(PMT) and cationic as well as nonionic surfactants was studied by tensiometry.The cmc value
重庆光电技术研究所新产品简介GD5251Y型低压硅雪崩探测器1工作原理该低压硅雪崩探测器是一个典型的拉通型雪崩光电二极管。p-区的杂质浓度比n区的高1~2个数量级。当外加反向电压使器件全耗
A novel yttrium citrate-templated conversion method for morphology controlled synthesis of Y2O3 microspheres, microflowers and microsheets was reported for the
本文研究了非晶硅发射区双极晶体管的低温特性,得出了如下结论:低温下电流增益随基区杂质浓度的上升而下降,不同于常规同质结双极晶体管的情况,集电极电流则随基区杂质浓度的上升
CD激光器年产量超过二千万支780nm波长、毫瓦级GaAlAs激光器,每支售价仅几美元。该产品专为音频唱机设计,基片上录有数码,这种激光器发射单横模,噪声低。在CD唱机或其他只读放唱光盘中它们无需调
春季测土配方施肥近150万亩秋季将测土配方施肥600万亩, 自测土配方施肥春季行动以来,山东省累计安排千亩以上示范方600多个,示范面积近150万亩,带动面积1000万亩。技术人员
1IntroductionIn the very recent years, low-dimensional nanomaterials have attracted a great interest in nanoscience and nanotechnology due to their exciting app