| 单词 | open-hearth process |
| 例句 | The Bessemer process, named for English inventor Henry Bessemer, and the open-hearth process, changed the way the United States produced steel and, in doing so, led the country into a new industrialized age. U.S. History 2014-12-30T00:00:00Z Bessemer's relation to the open-hearth process was very much like Kelly's to the Bessemer process.... The Beginnings of Cheap Steel Even paper-bagging does not quite match the open-hearth process, though there is the same secret of superiority, namely, cooking things in their own essence by the agency of hot air. Dishes & Beverages of the Old South These steels are manufactured very largely by the open-hearth process, although chromium steels are also a crucible product. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Contemporaneous with his development of the open-hearth process, William Siemens introduced the rotary furnace for producing wrought-iron direct from the ore without the need of puddling. Heroes of the Telegraph |
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