1、

Abstract In this paper, we expound the gist of the process control in thick-layer carburizing for heavy-duty gears which includes the selection of the suitable carburizing temperature, cycle and ratio of the carburizing to diffusing period, the way and the demand of carbon-potential control.

阐述了大型重载齿轮深层渗碳工艺控制的要点,包括渗碳温度和时间的合理选择,强渗与扩散时间的最佳分配,碳势控制的途径和要求。

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2、

When the speed of the rotary radial jet reaches 3~ 5 m/ s, the diffusing coefficient of airflow can be increased 2~ 4 times, and effective range can exceed 10 m. Therefore, the gas accumulation in upper corner can be eliminated effectively.

当射流速度达3~5m/s时,可提高风流的扩散系数2~4倍,有效射程可达10m以上,有效地驱散了工作面上隅角的积聚瓦斯。

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3、

The small patches of different structure can increase urban landscape heterogeneity, providing migration and diffusing temporary habitats for creatures, there will be close to the resident district and work district, thus would be very convenient to use.

结构不同的小斑块可增加城市的景观异质性,为生物提供迁徙地、扩散暂歇地,而且距离居住区、工作区近,方便使用。

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4、

Beyond the power of diffusing old wealth , it has the prerogative of creating new.

它除了具有分配原有的财富的能力之外, 还具有创造新财富的特殊能力.

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5、

The HEPA filtrated air diffuser on the ceiling with a good function of disperse and diffusing.

经过高效过滤后的空气,通过漩流面板达到一个更好的扩散均流效果.

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