The industrial production, research & development of ludwigite are reviewed. The significance of development also stated.述国内对硼镁铁矿工业生产 和 科研开发情况,以及硼镁铁矿开发的意义.The theory ofZone of Proximal Development from Vygotsky is of imp...
The authorities attached much significance to his visit.当局非常重视他的访问。The President's visit is loaded with symbolic significance.总统之行充满象征性意义。a decision of major political significance具有重大政治意义的决定...