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How to pronounce open-hearth process in English?

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Type Words
Type of steel production

Examples of open-hearth process

open-hearth process
This process is very similar to open hearth furnace steelmaking.
From the en.wikipedia.org
Only the Siemens-Martin open-hearth process developed by 1875 yielded steel of consistent quality.
From the en.wikipedia.org
Improvements to the Bessemer process and the development of the open hearth process removed this advantage.
From the en.wikipedia.org
The Bessemer process was the first successful method of steelmaking in quantity, followed by the open hearth furnace.
From the en.wikipedia.org
The Bessemer process was soon followed by the Siemens-Martin furnace which was used in the open hearth process.
From the en.wikipedia.org
Earlier processes for this included the finery forge, the puddling furnace, the Bessemer process, and the open hearth furnace.
From the en.wikipedia.org
Also known as the open-hearth process, it was this technology that Mark Firth's scouts discovered in his hunt for a rival to Bessemer's.
From the bbc.co.uk
However, as early as 1895 in the UK it was being noted that the heyday of the Bessemer process was over and that the open hearth method predominated.
From the en.wikipedia.org
Because it was easier to control quality with the open hearth process, it became the leading steel making process in early 20th century.
From the en.wikipedia.org