ﺍﻟﻮﻃﲏ ﻟﻺﲰﻨﺖ ﺳﻨﺔ 2002 ERCE 47 ERCO 21 ERCC 17 ECDE 15 ﻭ ﳑﺎ ﳚﺪﺭ ﺫﻛﺮﻩ ﺃﻥ ﺍﻹﻧﺘﺎﺝ ﺍﻟﻮﻃﲏ ﳌﺎﺩﺓ ﺍﻹﲰﻨﺖ ﰲ ﺗﺰﺍﻳﺪ ﺷﺒﻪ ﻣﺴﺘﻤﺮ ﻭ ﻫﺬﺍ ﻣﺎ ﻳﻮﺿﺤﻪ ﺍﻟﺮﺳﻢ ﺍﻟﺒﻴﺎﱐ ﺍﻟﺘﺎﱄ ﺷﻜﻞ ﺭﻗﻢ 1 3 ﺇﻥ ﻧﻘﻞ ﺍﻟﻌﺠﻴﻨﺔ ﺩﺍﺧﻞ ﻓﺮﻥ ﺍﻹﲪﺎﺀ ﻳﺘﻢ ﰲ ﻗﻨﻮﺍﺕ ﲢﺖ ﺩﻓﻊ ﻣﻀﺨﺎﺕ ﻃﺎﺭﺩﺓ ﺃﻣﺎ ﻧﻘﻞ ﺍﻟﻐﺒﲑﺓ ﻓﻴﺘﻢ ﺇﻣﺎ ﺑﺪﻓﻊ ﺍﳌﻀﺨﺎﺕ ﺍﻟﻄﺎﺭﺩﺓ ﺃﻭ ﺑﺎﳍﻮﺍﺀ ﺍﳌﻀﻐﻮﻁ، ﻭ ﻓﺮﻥ ﺍﻹﲪﺎﺀ ﻫﻮ ﻋﺒﺎﺭﺓ ﻋﻦ ﻓﺮﻥ ﺩﻭﺍﺭ Four rotatif