金属铸工安装和操作各种铸造机，铸造铁和非铁金属产品；手工舀取熔化的金属，并倒入模具，生产铸件。

Metal casters set up and operate various casting machines to cast ferrous and non-ferrous metal products; hand ladle and pour molten metal into moulds to produce castings.

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基于扩大铸造利润空间的目的，探讨大比例废钢冲天炉的熔化特点、操作及其结构问题，供有关铸造工作者参考。

To enlarge the profit of casting, the paper explores the melting character, operation and structure of the cannon stove for big scale waste steel to give information to someone doing casting work.

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介绍了对熔化极焊机全自动改进的方法、操作。此法有效地保证了H钢的焊接质量，提高了焊接速度。

The method and the operation of the fully and automatically improved fusion electrode welders were presented, the method could ensure the welding quality of H steel, and increase the welding velocity.

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