虽然混凝土防渗墙技术在工程上得到广泛应用，但混凝土防渗墙的设计和理论研究还很不成熟，在多年的工程运用中，也暴露出了许多问题。
Though concrete anti-seepage wall is applied widely in the engineering, its design and theory research are still not mature, and there are many problems in the applications.
许多有关网格的理论才开始建立，其中一些还不成熟，特别是网格资源管理的理论和技术还很不丰富。
It can be said that the research and application of Grid just begin. Many theories about Grid are coming into being and some of them are immature.
许多有关网格的理论才开始建立，其中一些还不成熟，特别是网格资源管理的理论和技术还很不丰富。
It can be said that the research and application of Grid just begin. Many theories about Grid are coming into being and some of them are immature.
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