Workers tempered steel at various temperatures to increase its strength.

工人们用各种温度使钢回火来增大其强度.

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The application of non hardened and tempered steel is predicted.

并预测了非调质钢的应用前景.

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For precision forging crankshaft of tiny - automobile, non - tempered steel will replace other materials.

对于精密锻造的微车曲轴, 非 调制钢将逐渐替代其它原材料.

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Bodkin Arrow : Arrows with a tempered steel tip.

锥形箭: 带有淬火强化的钢制箭头.

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To introduce oil - tempered steel wire production line being used universally at home at present.

介绍目前国内普遍使用的油淬火+回火钢丝生产线.

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Basically, it is made of carbon steel , normalized and tempered steel , rare materials, etc.

连续油管用材主要有碳钢 、 调质钢和稀有材料等.

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The methods of control of sulphide inclusions in S - bearing non - quenched - tempered steel are investigated in this paper.

通过研究影响钢中硫化物形态的因素,提出了控制钢中硫含量和硫化物夹杂的措施.

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