Much study has been given to oxidative desulfurization technology due to its mild operation condition and low cost.

氧化脱硫技术因其操作条件温和、成本低，近十几年研究较多。

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It is proposed that test methods should be selected depending on the actual operation condition and properties of refractories.

从耐火材料检测实践出发，提出了根据耐火材料实际应用状况和材料种类来选择适当的检测方法。

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Otherwise, it can be improvement operation condition and convenience maintenance to move the drive system of steecther out of the continuous casting line.

另外，将拉矫机的驱动系统移至连铸线外，可改善其工作环境，并方便设备维修。

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But as he turned 15 his condition deteriorated and a heart transplant operation was carried out last month.

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