The reason of thickness of pipe end increasing in tension reducing is analyzed.The principle and method of cutting end control (CEC) are introduced. The key problems are discussed.是什么意思_The reason of thickness of pipe end increasing in tension reducing is analyzed.The principle and method of cutting end control (CEC) are introduced. The key problems are discussed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句