中国发现的钴矿含锰量高,因此呈现出较弱的蓝灰色。
From the Middle East the Chinese acquired a blue pigment—a purified form of cobalt oxide unobtainable at that time in China—that contained only a low level of manganese.中国人从中东获得了一种蓝色颜料,这是一种当时在中国很难得到的纯净的氧化钴,这种颜料只含有少量的锰。
The peak cobalt rodlet temperature doesn exceed the cobalt melt temperature during these two cases.在这两种情况下,钴小棒的峰值温度不会超过钴的熔化温度。