美洲的冶金学发展非常晚，而且发展有限。与之不同的是，非洲人在更早的时候就有了铁。
Unlike in the Americas, where metallurgy was a very late and limited development, Africans had iron from a relatively early date.
如果没有免疫学、生物化学、化学工程、统计学和冶金学等等领域无数的进步，我不会是现在这样，事实上我可能根本不存在了。
Without innumerable advances in immunology, biochemistry, chemical engineering, statistics and metallurgy, to name but a few, I wouldn't be where I am now - in fact I wouldn't be at all.
一个能英语说得很好的冶金学研究生解释说，他的研究可比不上在伦敦或洛杉矶的同学，因为制度不容许。
A postgraduate metallurgy student who spoke good English explained that he could not compare his research with a fellow student in say, London or Los Angeles, because the system would not let him.
对热处理的理解包含于对冶金学较广泛的研究。
The understanding of heat treatment is embraced by the broader study of metallurgy.
在矿业学校的早期阶段，同样的老师讲授采矿和冶金学科，有时还要讲地质学和矿物学。
In the early years of the schools of mines, teaching of mining and metallurgy, and sometimes geology and mineralogy were taught by the same professor.
分金：冶金学中，将金和银用化学或电气化学方法进行分离的做法。
Parting: In metallurgy, the separation of gold and silver by chemical or electrochemical means .
此外，物理冶金学还包括改变金属物理和机械性能的技术和工艺。
Besides, physical metallurgy also includes the techniques and processes of changing the physical and mechanical properties of metals.
也提出了冶金学中使用国际单位制目前还存在的若干问题。
Some problems existing in the application of international unit system in metallurgy are also pointed out.
培训内容包括各种形式的焊接、切割、冶金学以及安全教育。
The training includes various forms of welding, cutting, metallurgy, and safety.
冶金学是物理学、化学和涉及金属从矿石提炼到最后产物的工程学。
Metallurgy is the physics, chemistry, and engineering related to metals from ore extraction to the final product.
湿法冶金学：将矿石中的金属溶解(例如用它的一种盐)，再从溶液中回收金属的提取方法。
Hydrometallurgy: Extraction of metal from ore by dissolving the metal (as one of its salts) and then recovering it from the solution.
仅从冶金学、材料学的角度上看，钢厂的功能只是钢铁冶炼与钢材生产而已。
The functions of steel plants are only related to steelmaking and steel products manufacture from viewpoints of metallurgy and material science.
冶金学是涉及金属从矿石提炼到最后产物的物理学、化学和工程学总称。
Metallurgy is the physics, chemistry, and engineering related to metals from ore extraction to the final product.
本文的第一部分论述物理冶金学和热处理之间的紧密联系，因为两者所涉及的都是加工处理对材料的组织与性能的影响。
The first part of this paper shows that physical metallurgy and heat treatment are closely related because of common concern for the effects of processing on the structure and properties of materials.
本文的第一部分论述物理冶金学和热处理之间的紧密联系，因为两者所涉及的都是加工处理对材料的组织与性能的影响。
The first part of this paper shows that physical metallurgy and heat treatment are closely related because of common concern for the effects of processing on the structure and properties of materials.
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