2660全新锋范较上一代而言,车身尺寸进行了加大,长、宽、高达到了4450/1695/1477(mm),轴距为2600mm,由此带来了后排腿部空间60mm的提升,以及膝部空间70mm的增加,使乘坐更加舒适。7000新车在外形、空间和动力上均较上一代有所提升,以动...2660全新锋范较上一代而言,车身尺寸进行了加大,长、宽、高达到了4450/1695/1477(mm),轴距为2600mm,由此带来了后排腿部空间60mm的提升,以及膝部空间70mm的增加,使乘坐更加舒适。7000新车在外形、空间和动力上均较上一代有所提升,以动力为例,最大功率从8 8 k W提升到9 6 k W/6 6 0 0 r p m,最大扭矩从1 4 5 N·m提升为155N·m/4600rpm,而预售价格还比老款降低了7000元。这样的价格低于大部分同级别竞争对手,为全新锋范的销量回归奠定了基础。展开更多
Intense and extensive dust,caused by a strong Mongolian cyclone,hit Mongolia and northern China on 14-15 March 2021.In this study,the development process of this cyclone is analysed from the perspective of highfrequen...Intense and extensive dust,caused by a strong Mongolian cyclone,hit Mongolia and northern China on 14-15 March 2021.In this study,the development process of this cyclone is analysed from the perspective of highfrequency eddy energetics.During the low-frequency circulation field of early March of 2021,an amplified polar vortex intruding towards central Asia and a ridge straddling eastern and northeastern Asia worked in concert to comprise a strong baroclinic zone from central Asia to Lake Baikal.Under these favourable conditions,on 13 March,a migratory trough triggered the Mongolian cyclone by crossing over the Sayan Mountains.The downwards transfer of kinetic energy from the eddy at 850 hPa played a key role in the intensification and mature stage of the cyclone.This mechanism was primarily completed by the cold air sinking behind the cold front.The frontal cyclone wave mechanism became crucial once the cyclone started to rapidly develop.The authors emphasize that the anomalously large growth of high-frequency available potential energy,which characterized this super strong cyclone,was obtained by extracting energy first from the time-mean available potential energy and then from the low-frequency available potential energy.The interannual temperature anomaly pattern of"north cold south warm"facilitated the additional time-mean available potential energy,and the temperature anomaly pattern of"northwest cold southeast warm"conditioned the extra low-frequency available potential energy.The analysis results suggest that the interaction between high-and low-frequency waves was also important in the development of the intense cyclone.展开更多
文摘2660全新锋范较上一代而言,车身尺寸进行了加大,长、宽、高达到了4450/1695/1477(mm),轴距为2600mm,由此带来了后排腿部空间60mm的提升,以及膝部空间70mm的增加,使乘坐更加舒适。7000新车在外形、空间和动力上均较上一代有所提升,以动力为例,最大功率从8 8 k W提升到9 6 k W/6 6 0 0 r p m,最大扭矩从1 4 5 N·m提升为155N·m/4600rpm,而预售价格还比老款降低了7000元。这样的价格低于大部分同级别竞争对手,为全新锋范的销量回归奠定了基础。
基金This work is supported by the National Natural Science Foundation of China[Grant No.41630424].
文摘Intense and extensive dust,caused by a strong Mongolian cyclone,hit Mongolia and northern China on 14-15 March 2021.In this study,the development process of this cyclone is analysed from the perspective of highfrequency eddy energetics.During the low-frequency circulation field of early March of 2021,an amplified polar vortex intruding towards central Asia and a ridge straddling eastern and northeastern Asia worked in concert to comprise a strong baroclinic zone from central Asia to Lake Baikal.Under these favourable conditions,on 13 March,a migratory trough triggered the Mongolian cyclone by crossing over the Sayan Mountains.The downwards transfer of kinetic energy from the eddy at 850 hPa played a key role in the intensification and mature stage of the cyclone.This mechanism was primarily completed by the cold air sinking behind the cold front.The frontal cyclone wave mechanism became crucial once the cyclone started to rapidly develop.The authors emphasize that the anomalously large growth of high-frequency available potential energy,which characterized this super strong cyclone,was obtained by extracting energy first from the time-mean available potential energy and then from the low-frequency available potential energy.The interannual temperature anomaly pattern of"north cold south warm"facilitated the additional time-mean available potential energy,and the temperature anomaly pattern of"northwest cold southeast warm"conditioned the extra low-frequency available potential energy.The analysis results suggest that the interaction between high-and low-frequency waves was also important in the development of the intense cyclone.
