He began working with metal four years ago to provide for himself and his young family.

四年前他开始从事冶金业来养活自己和家人。

Next, we use a new hardening process developed by our metallurgists to strengthen a metal that is naturally very soft.

随后，再采用我们的冶金大师制定的全新强化工序，让这一本来十分柔软的金属变得更为坚固。

Or perhaps later in history, it would require the techniques of metallurgy.

或者在历史的后期 它可能需要冶金技术。

Anglo American spun off its thermal coal business and is selling its metallurgical coal mines.

英美资源集团剥动力煤业务，并正在出售冶金煤矿。

Fractals are used in, like, everything from predicting natural disasters to metallurgy.

分形体能被用于...万事万物从预测自然灾害冶金术。

Bones of domestic animals were important raw materials for artifacts of Neolithic peoples before the development of metallurgy.

在冶金术尚未发展之前，家畜的骨头是新石器时代人们制作器物的重要原料。

Key hallmarks of this transition included the development of agriculture, metallurgy, complex technology, centralized government, and writing.

这一转变的主要标包括农业、冶金、复杂技术、中央集权政府和文字的发展。

Of those advances—in paper, movable type, metallurgy, presses, inks, and scripts—paper and the idea of movable type reached Europe from China.

在纸张、活字印刷、冶金、印刷机、油墨和文字等方面的进步中，纸张和活字印刷的想法是从中国传欧洲的。

We take this fine powder, the black mass, we pass it on into the hydrometallurgical process ... Hydrometallurgy means treating metal in liquid.

我们将这种细粉末，黑色物质，将传递法冶金过程中......法冶金意味着在液体中处理金属。

A New World example of technological diffusion is metallurgy, which spread from the Andes via Panama to Mesoamerica.

新世界技术传播的一个例子是冶金术，它从安第斯山脉经巴拿马传播中美洲。

For many projects at the Exploration Results stage, metallurgical recovery information may not be available or able to be estimated with reasonable confidence.

对于许多处于勘探结果阶段的项目，冶金回收率信息可能无法获得或无法以合理的可信度进行估算。

Modifying Factors include, but are not restricted to mining, processing, metallurgical, infrastructure, economic, marketing, legal, environmental, social and governance (ESG) and regulatory factors.

修改因素包括但不限于采矿、加工、冶金、基础设施、经济、营销、法律、环境、社会和治理 （ESG） 以及监管因素。

12.4 Public Reporting based on metal equivalents is not appropriate if metallurgical recovery information is not available or able to be estimated with reasonable confidence.

12.4 如果冶金采收率信息不可用或无法以合理可信度估算，则不宜基于金属当量进行公开报告。

Proponents of this theory argue that the artifact was manufactured with modern metallurgy techniques and other technologies that were not available until at least the 20th century.

这一理论的支持者认为，这件人工制品是用现代冶金技术和他至少在 20 世纪才出现的技术制造的。

Assumed metallurgical recoveries and payabilities for all metals and discussion of the basis on which the assumed recoveries and payabilities are derived (metallurgical test work, detailed mineralogy, similar deposits, etc.).

• 假设所有金属的冶金回收率和可付款率，并讨论得出假定回收率和可付款率的基础（冶金测试工作、详细的矿物学、类似的矿床等）。

2 The Code has been adopted by The Australasian Institute of Mining and Metallurgy (AusIMM) and the Australian Institute of Geoscientists (AIG) and is binding on members of those organisations.

2.2 该准则已被澳大利亚采矿和冶金研究所 （AusIMM） 和澳大利亚地球科学家协会 （AIG） 采用，并对这些组织的成员具有约束力。

Instead, iron ore metallurgy grew out of thousands of years of human experience with natural outcrops of pure metals soft enough to be hammered into shape without heat (copper and gold).

相反，铁矿石冶金源自人类数千年的经验，天然露头的纯金属足够柔软，无需加热即可锤炼成型（铜和金）。

As an illustration of the latter obstacle, pottery and iron metallurgy arose in or reached sub-Saharan Africa's Sahel zone (north of the equator) at least as early as they reached western Europe.

作为后一个障碍的例证，陶器和铁冶金至少早在达西欧时就在撒哈拉以南非洲的萨赫勒地区（赤道以北）出现或达。

However, pottery did not reach the southern tip of Africa until around A.D.1, and metallurgy had not yet diffused overland to the southern tip by the time that it arrived there from Europe on ships.

然而，陶器直公元1年左右才达非洲南端，当冶金术从欧洲乘船达那里时，冶金术还没有通过陆路传播南端。

Chromium's effect on iron and steel had been observed for decades, but it wasn't put to practical use until 1913, when a metallurgist named Harry Brearley was looking for ways to prevent corrosion in gun barrels.

铬对铁和钢的影响已经被观察几十年，但直 1913 年，一位名叫哈里·布里尔利的冶金学家在寻找防止枪管腐蚀的方法时，才将付诸实践。