forefield英'fɔːfiːld美'fɔːfiːldBNC¹⁷³⁹⁹⁵⁺² 基本例句 视域或战场的最近部分 This paper summers the directly use of the natural rocks in ceramics and its development forefield. its aim is to show the progress of our ceramic materials. 本文着重对天然岩石直接在陶瓷生产中的应用研究及其开发前景进行了论述，旨在反映当前我国陶瓷新原料的进展。 cnki