此外，成本降低，时间是通过消除二次手术，保住，减少废料，降低材料和制造成本，增加设计的灵活性。
In addition, costs are reduced and time is saved by eliminating secondary operations, reducing scrap, lowering material and manufacturing costs, and increasing design flexibility.
其他大量的放射性材料，从废弃的X光机到核废料，可能被用于制造脏弹。
And that larger amounts of other radioactive material, from discarded X-ray machines to spent fuel, might be used to make a dirty bomb.
生物燃料是由粮食作物或其他有机材料(如农田废料)制造的燃料。
Biofuels are fuels made from food crops or other organic materials, like farm wastes.
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