This paper describes the major problems that Metropolitan Area Network(MAN)is facing and presents basic requirements of the next generation MAN.It presents four technical solutions:SDH,Ethernet, Resilient Packet Ring ...This paper describes the major problems that Metropolitan Area Network(MAN)is facing and presents basic requirements of the next generation MAN.It presents four technical solutions:SDH,Ethernet, Resilient Packet Ring and WDM Multiservice Platform.Based on the analysis of these solutions,it is concluded that the above technologies should be used together and different technologies should be employed under different circumstances to make an integrated solution for MAN,while SDH multiservice will play a center role in the near future.展开更多
SINOPEC is an integrated energy and chemical company engaging in upstream,midstream and downstream operations. The business of SINOPEC covers E&P of oil and gas, refining,chemical production, as well as sales and ...SINOPEC is an integrated energy and chemical company engaging in upstream,midstream and downstream operations. The business of SINOPEC covers E&P of oil and gas, refining,chemical production, as well as sales and marketing of refined oil products. In the field of oil andnatural gas exploration and development, there are 13 upstream subsidiaries in SINOPEC. By the endof 2003, the proven reserves of crude oil were 3,257 mmbbls, and natural gas reserves totaled2,887.6 bcf. The oil and gas production in 2003 included 270.96 mmbbls of oil and 187.7 bcf ofnatural gas. In the area of middle-stream operation, SINOPEC has 33 refineries. The total capacityof crude distillation is 153.9 million tons/year, about 51% of the total distillation capacity inChina. In 2003, 123.5 million tons of crude oil was processed, around 53% of total crude processedin China.展开更多
I. The Current Situation ofOur Real Estate Industry According to the findings of a nationalsurvey in urban housing conducted in 1985,the total urban floor area of the whole coun-try has reached 4.676 billion square me...I. The Current Situation ofOur Real Estate Industry According to the findings of a nationalsurvey in urban housing conducted in 1985,the total urban floor area of the whole coun-try has reached 4.676 billion square meters,among which industrial buildings occupied1.353 billion square meters, commercialbuildings 0.388 billion, cultural and educa-展开更多
文摘This paper describes the major problems that Metropolitan Area Network(MAN)is facing and presents basic requirements of the next generation MAN.It presents four technical solutions:SDH,Ethernet, Resilient Packet Ring and WDM Multiservice Platform.Based on the analysis of these solutions,it is concluded that the above technologies should be used together and different technologies should be employed under different circumstances to make an integrated solution for MAN,while SDH multiservice will play a center role in the near future.
文摘SINOPEC is an integrated energy and chemical company engaging in upstream,midstream and downstream operations. The business of SINOPEC covers E&P of oil and gas, refining,chemical production, as well as sales and marketing of refined oil products. In the field of oil andnatural gas exploration and development, there are 13 upstream subsidiaries in SINOPEC. By the endof 2003, the proven reserves of crude oil were 3,257 mmbbls, and natural gas reserves totaled2,887.6 bcf. The oil and gas production in 2003 included 270.96 mmbbls of oil and 187.7 bcf ofnatural gas. In the area of middle-stream operation, SINOPEC has 33 refineries. The total capacityof crude distillation is 153.9 million tons/year, about 51% of the total distillation capacity inChina. In 2003, 123.5 million tons of crude oil was processed, around 53% of total crude processedin China.
文摘I. The Current Situation ofOur Real Estate Industry According to the findings of a nationalsurvey in urban housing conducted in 1985,the total urban floor area of the whole coun-try has reached 4.676 billion square meters,among which industrial buildings occupied1.353 billion square meters, commercialbuildings 0.388 billion, cultural and educa-
