mouldboardsBNC¹⁷³⁹⁹⁵⁺² 基本例句 n.模板；型板原型mouldboard的复数 From the ways of smelting history, mineral resources and mould-making technology in Yangcheng, the article analyses the results why the Yangcheng Mouldboards were so great in the quality. 本文从阳城的冶炼历史、矿产资源、犁镜制范工艺等方面，分析了阳城犁镜质量优异的原因。 cnki