The circumstances of making high-grade ferrotungsten by alumino-silico-thermic process are desicribed.
本文介绍了铝硅热法生产高钨铁的工艺研究情况,讨论了一些工艺条件对
的影响。
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These early Mesopotamian cities engaged in a form of socialism, where farmers contributed their crops to public storehouses out of which workers, like metalworkers or builders or male models or whatever—would be paid uniform " wages" in grain.
这些早期的美索不达米亚城市具备某种社会主义形式,农民贡献自己的谷物到公共储存房,而工人,比如建筑工、冶炼工或男模特会得到同样多的谷物作为工资。