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R & D engineers Peb Pab Pawg Kev Tshawb Fawb thiab Kev Txhim Kho (R&D) muaj ntau yam kev pabcuam los pab cov lag luam thiab cov koom haum hauv cov txheej txheem ntawm kev tsim kho tshiab, kev tsim khoom, thiab kev txhim kho thev naus laus zis.