泰永长征：公司固态变压器尚处于应用方案论证与市场调研阶段

Group 1 - The core viewpoint of the article is that Taiyong Changzheng's solid-state transformer is still in the application scheme verification and market research stage [2] - The company's products can be widely applied in various sectors including industrial, electric power, public facilities, rail transit, and communication data for transformation, distribution, and charging systems [2]