The core of a plasma torch is a pair of electrodes, usually made from a nickel-based alloy.
等离子体炬的核心部分是一对电极，通常用以镍为基础的合金制成。
Chromium nickel stainless steel is usually non - magnetic in the annealed state, some of which are magnetic after cold working.
铬镍不锈钢在退火状况下通常是无磁性的，在冷加工之后，有的会有磁性的。
The technology has got better, too. The core of a plasma torch is a pair of electrodes, usually made from a nickel-based alloy.
该项技术也有所提高，电浆火炬的主要成分是一对电极板，主要由以镍为主的合金制成。
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