“The permanence and water-resistance of the iron and gall-nut formula made it the standard writing ink in Europe for over 1,400 years, and in America after European colonization.“作者: 魑魅魍魉 时间: 2012-4-16 17:49
路过帮顶了......作者: EDWARDIITII 时间: 2012-4-16 18:27
铁盐墨水应该有超过1400年的使用历史,怎么说100多年前才发现呢?
“The permanence and water-resis ...
z_g_yang 发表于 2012-4-16 12:11