所面临的困难与问题主要是国内松香应用技术研究水平不高，产品市场有限，资金不足，信息不灵，行政于预。
The difficulties it faces are: low level of domestic resins application research, limited product market, insufficient funds and information, administrative interruption.
所面临的困难与问题主要是国内松香应用技术研究水平不高，产品市场有限，资金不足，信息不灵，行政于预。
The difficulties it faces are: low level of domestic resins application research, limited product market, insufficient funds and information, administrative interruption.
应用推荐