Present situation of development and utilization and the tendency on roadside greening species in Jilin province
吉林省公路绿化材料开发利用现状及发展趋势
Present situation of development on non-halogen, low toxicity and smoke suppression flame retardants was described in details.
就无卤、低毒、抑烟的阻燃剂的开发现状作了详细介绍。
Present situation of development of fruit industry and its countermeasures of Lanzhou city
兰州果品业发展的现状与对策
Present situation of development in rooftop waterproofing project
屋面防水工程的发展现状