the four lines measuring method

• 四线测量法

the four lines measuring method的用法和样例：

例句

1. The method is proved to be advanced in velocity and accuracy, and is fit for volume-production meterage and meterage in dangerous condition.
   实验证明该方法测量速度快，精度适中的特点，适用于大批量产品在线测量，亦适用于恶劣环境下的测量。