Aircraft engineers have for years sought to replace metal components with lightweight plastics reinforced with carbon fibres.
飞机工程师们多年来探索使用轻质强化碳纤维塑料代替金属部件。
Transmission or conveyor belts or belting, of textile material, whether or not impregnated, coated, covered or laminated with plastics, or reinforced with metal or other material.
纺织材料制的传动带或输送带及带料，不论是否用塑料浸渍、涂布、包覆或压层，也不论是否用金属或其他材料加强。
Transmission or conveyor belts or belting, of textile material, whether or not impregnated, coated, covered or laminated with plastics, or reinforced with metal or other material.
纺织材料制的传动带或输送带及带料，不论是否用塑料浸渍、涂布、包覆或压层，也不论是否用金属或其他材料加强。
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