Mmetụta ngwa nke nano lanthanum oxide na mmanụ lubricating Mgbe oke uru nke kaadị na-enweghị kaadị PB nke mmanụ mmanụ mmanụ bụ 362N, dayameta nke ebe egweri bụ 0.720mm, ihe esemokwu ahụ bụ 0.1240, nano-La2O3 A na-agbakwunye ihe irighiri ihe, yana uru PB inc...
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