The open wire heating elements are usually made of nichrome wire.

裸线式电热元件通常用镍铬合金丝制成。

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They are not sized to a specific wattage output like metallic heating elements.

这种硅碳棒不同于金属加热元件，没有固定的输出功率。

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It is one of domestic electric heating elements manufacturers that are of certain scale.

是国内具有一定规模的电热元件生产厂家之一。

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Dr Cooper and Julien Reboud, also from the University of Glasgow, have now developed a way to carry out the entire PCR process mixing, heating and cooling, as well as analysis using a single piezoelectric source, without the need for separate heating elements or detection equipment.

ECONOMIST: Acoustic microfluidics