ferruginous 是什么意思

	adj. 1.铁(质)的，含铁的。 2.铁锈色的，赤褐色的。短语和例子 a ferruginous spring 含铁矿泉。

	1.	Chromium , manganese and ferruginous manganese ores - sampling and determination of moisture content and size distribution 铬矿石锰矿石铁锰矿石.取样及水分粒度分布的测定
	2.	The area is blessed with high - quality fine - grained ferruginous sand , charcoal and water from rivers , which are essential for sword making 它的知名完全得益于原料上乘的砂铁和燃料(炭)及便利的河川水运。

ferruginous是什么意思