flattening machine的用法和樣例：
例句
- The straightening principle and the calculation method for the force and power of this straightening machine is discussed.
並論述了該矯直機的矯直原理及力能參數的計算方法。 - The straightness error mathematics model has been built, then the measuring and controlling system of redirector rack automatic straightening machine has been developed.
建立直線度誤差的數學模型，研製全自動校直機測控系統，並用於輕型汽車和轎車的轉向器齒條的檢測和校直。
