Gas, oil and electric furnaces are commonly used for heat treating metals.

金属热处理常用煤气炉、油炉和电炉。

youdao

These controller give a erfect performance of measurement, indication and automatic control of electric furnaces.

上述二个系列的温度控制器均需与热电偶配合使用，对电炉的温度进行测量、指示和自动控制。

youdao

Optimization of far infrared heating elements and design of electric furnaces using the elements are stated, and examples are given.

本文着重阐述了远红外加热元件的优选方法和电炉设计步骤，并列举了实例。

youdao

Hennessy also likes Tokyo Tekko, which makes electric furnaces and structural steel for the construction industry.

FORBES: Japan's Economy May Stink, But Its World-Class Firms Are A Bargain

In the 1980s Ford was turning out 2.3 million tons with three blast furnaces and two electric furnaces.

FORBES: Man of steel

On top of their lower labour costs, the mini-mills' electric-arc furnaces are much cheaper to build than iron-ore blast furnaces.

ECONOMIST: Steel: Rust never sleeps | The