7码定位多少钱一注简介:As for other sciences that Song Yingxing was proficient in, such as metallurgy, gunpowder, textiles, salt making, coal mining and other technologies, they were all needed by the Ming Dynasty, so Zhu Cixiang couldn't wait to meet this encyclopedia expert.
As for other sciences that Song Yingxing was proficient in, such as metallurgy, gunpowder, textiles, salt making, coal mining and other technologies, they were all needed by the Ming Dynasty, so Zhu Cixiang couldn't wait to meet this encyclopedia expert.