دستهبندی:
pioneer
تصديق pioneer تلفظ ها
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Watt تلفظWatt [de]
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James Watt تلفظJames Watt [en]
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George Stephenson تلفظGeorge Stephenson [en]
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William Caxton تلفظWilliam Caxton [en]
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Matthew Boulton تلفظMatthew Boulton [en]
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C. Walton Lillehei تلفظC. Walton Lillehei [en]
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William Forbes-Sempill تلفظWilliam Forbes-Sempill [en]
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Joseph Lister تلفظJoseph Lister [en]
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Lewis Wolberg تلفظLewis Wolberg [en]
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John Jeavons تلفظJohn Jeavons [en]
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William Battie تلفظWilliam Battie [en]