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Source heat pump works Is the use of water and earth energy (ground water, soil or surface water) exchange as a water source heat pump hot and cold and heat sources, geothermal energy in the winter to the heat, "taken" out of the supply of indoor heating, this time to be able to "heat"; summer, […]
Be VoIP One of the signaling standard, it is scalable, flexible, simple and easy to implement. In addition, SIP can provide good QoS support for VoIP features to meet the full requirements. This paper introduces the SIP-based VoIP system works, key technologies, system architecture and business environment, and in a business case for the operations […]
According to overseas media reports in Calgary March 20, Conference Board of Canada (CBC) 3 18 in here that, due to rising crude oil prices and increasing oil production exceeded the increase in operating costs of the impact of Petro-Canada Industry profits for the year are likely to increase 66%. Conference Board of Canada said […]
With the support of the Ministry of Finance New Energy Development and Energy Reduction Promulgation of a policy, contract energy management (EMC) Terms and conditions appeared one after another. With the industry analysis, up to trillion Building energy efficiency Market gradually opens the door to actively expand the business Tellhow contract energy management technology and […]
Recent tight fundamentals in the domestic and international market factors that together the two unilateral increases under the domestic futures Sugar Air Gaps consecutive rolling boom market, until last weekend began to fall, stock prices in Guangxi has reached 4100 yuan or so. Looking forward, I believe that the trend of following the bulls, but […]
