The world’s longest and deepest tunnel,the 57.1 km long Gotthard Base Tunnel,was officially opened on June 1,2016 after 20years of effort[1,2],as shown in Fig.1[3,4].The tunnel,actually twin tubes,under the Gotthard ...The world’s longest and deepest tunnel,the 57.1 km long Gotthard Base Tunnel,was officially opened on June 1,2016 after 20years of effort[1,2],as shown in Fig.1[3,4].The tunnel,actually twin tubes,under the Gotthard Massif of the Swiss Alps connects Erstfeld in the north to Bodio in the south,effectively connecting northern and southern Europe with a high speed-high展开更多
The issue of genetically engineered(GE)crops has been a contentious one since shortly after the initial development of recombinant DNA manipulation techniques in the 1970s.It is a discussion which has played out frequ...The issue of genetically engineered(GE)crops has been a contentious one since shortly after the initial development of recombinant DNA manipulation techniques in the 1970s.It is a discussion which has played out frequently in the popular press,occasionally in sensational fashion,and left some people looking expectantly for great advances to eliminate world hunger。展开更多
1.The Status of Energy Development in China Rapid economic growth and an export-driven chemical-intensive economic structure have led to a rapid increase in energy consumption. Rapid economic development and the corre...1.The Status of Energy Development in China Rapid economic growth and an export-driven chemical-intensive economic structure have led to a rapid increase in energy consumption. Rapid economic development and the corresponding surge in energy consumption in China have raised public concern.From 1978,when展开更多
文摘The world’s longest and deepest tunnel,the 57.1 km long Gotthard Base Tunnel,was officially opened on June 1,2016 after 20years of effort[1,2],as shown in Fig.1[3,4].The tunnel,actually twin tubes,under the Gotthard Massif of the Swiss Alps connects Erstfeld in the north to Bodio in the south,effectively connecting northern and southern Europe with a high speed-high
文摘The issue of genetically engineered(GE)crops has been a contentious one since shortly after the initial development of recombinant DNA manipulation techniques in the 1970s.It is a discussion which has played out frequently in the popular press,occasionally in sensational fashion,and left some people looking expectantly for great advances to eliminate world hunger。
文摘1.The Status of Energy Development in China Rapid economic growth and an export-driven chemical-intensive economic structure have led to a rapid increase in energy consumption. Rapid economic development and the corresponding surge in energy consumption in China have raised public concern.From 1978,when
基金This research is financially supported by the National Science Foundation of China （No. 71673033）, and the Chinese Ministry of Education （Nos. 16YJA790058 and 2017CDJSK）.
