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现代的工业已经到了非常复杂的境界,就一种制品,想去追求所经过的工作层段,已非易事。就常人说,或者竟是不可能的事了。如果是化学制品,那是更进一层,面目全非,完全改观,并他的原料也无从推测。举一个例来说,各种颜料,装在铁罐中,或是用其他包装法的,都是鲜艳夺目,一经溶解染着,各色杂呈。谁知他的出身,竟是墨黑的煤炭呢。近代的化学制品,不论所用的天然原料,是矿物
The modern industry has reached a very complex realm. It is not easy to pursue a product that wants to go through the layers of work it has gone through. To ordinary people say, or is actually impossible. If it is chemical, it is a further layer, beyond recognition, completely changed, and his raw material can not be speculated. For example, a variety of pigments, packed in cans, or other packaging method, are colorful, once dissolved, colored. Who knows his origin, it actually is black coal it. Modern chemicals, regardless of the natural raw materials used, are minerals