基本解释[經濟學]鉄路技術改造英汉例句雙語例句In the field of railway construction in China, innovation and improvement in technology are always the top of the priorities.在我國鉄路建設中,技術創新、技術改造的工作歷來都是國家鉄路建設的重點。improvement in railway technology更多例句专业释义經濟學鉄路技術改造