les exemples

• When Jacob Godfrey first saw Henry Bessemer's revolutionary new process for making steel, he said the words,
  ,عندما رأى (جاكوب غودفري) أول عملية ثورية جديدة ,لـ (هنري باسمر) ,لصناعة الفولاذ ,قال العبارات

Notices

• A process for making steel by blowing air through molten pig iron contained in a suitable vessel. The process is one of rapid oxidation mainly of silicon and carbon.