• This test method covers the determination of the change of resistance with temperature of metallic materials for electrical heating, and is applicable over the range of service temperatures.

    试验方法适用电热合金温度变化测量,亦可用于超过电热合金使用温度范围的情况。

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  • The principle and the design method of a adjustable voltage unit for the heating transformer in electrical upsetting machine is introduced.

    系统中包含一个加热变压器设计研制交流调压单元本文具体介绍了交流调压的原理,电路的设计思想及其特点。

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  • The method of electrical heating screw pump production is developed.

    为此,提出了电热螺杆泵采油方法

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  • The test method for change of resistance with temperature of metallic materials for electrical heating was given in this paper.

    【中英文摘要】本文介绍电热合金电阻温度变化试验方法

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  • The test method for change of resistance with temperature of metallic materials for electrical heating was given in this paper.

    【中英文摘要】本文介绍电热合金电阻温度变化试验方法

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