大多数牙签由木头的碎片、荆棘或者骨头碎片制成，会随着时间的流逝腐烂消失，不留下任何可辨别的痕迹。
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Economically, a larger share of the system should be paid attention to control costs.
在经济上，对比重较大的系统要注意控制成本。
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During the nineteenth century , 20, made of Portland cement, concrete has come out.
十九世纪20年代, 波特兰水泥制成后, 混凝土问世了.
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By extending the industrial chain to control costs, margin improved steadily.
公司通过延长产业链控制成本, 毛利率稳步提高.
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The experimental results show that the FCF proposed here has important application values.
试验结果表明，所提出流动控制成形技术具有重要的应用价值。
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It'strictly means that the copies are made from an image on a metal plate.
技术上从严来说,这些印件是按金属印版上的图像制成的.
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目的研究以壳聚糖衍生物 - 异 丁基 壳聚糖为生物基质材料而制成的多功能(血、痛 、 菌、愈合)面敷料的安全性.
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Control-obsessed officials have suppressed even childish satire and jokes.
控制成性的官员们甚至对儿童讽刺作品和笑话都加以查禁.
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Thorough stirring is essential in order to obtain a homogeneous product.
为了获得质地均匀的制成品,最主要的是必须充分搅拌.
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