By analyzing climate condition during growth period of tobacco in Yuxian,scientific and reasonable production management measures are made. For meteorological d
The rail weighbridge system of a railway freight station is introduced firstly,and then the earthing method for protection of the rail weighbridge system agains
Based on daily data of influenza-like cases from four sentinel hospitals as well as meteorological data in Xuzhou from October 2005 to May 2011,number of patien
Based on the investigation of the species and frequency of submerged plants in Nanjishan Wetland of Poyang Lake in the winter of 2013,chlorophyll contents and p