Biological metallurgy is new technology which combines bacillus's affection and hydrometallurgy.生物冶金是一种细菌作用与湿法冶金相结合的新工艺.Application of solvent extraction process in tungsten hydrometallurgy is summarized.概述了溶剂萃取技术在钨...
Other early instruments included the sextant and the astrolabe.另外的早期仪器还有六分仪和星盘.The drum is one of the oldest musical instruments.鼓是最古老的乐器之一。Telescopes and microscopes are optical instruments.望远镜和显微镜是光学仪器.She conducted an...