题目

英语翻译
当测量超薄材料时,有时会发生一种称为“双重折射”的错误结果,它的结果为显示读数是实际厚度的二倍,另一种错误结果被称为“脉冲包络、循环跳跃”,它的结果是测得值大于实际厚度,为防止这类误差,测临界薄材时应重复测量核对.必要时,最小极限厚度可用试块比较法测得.

提问时间：2020-12-26

答案

When measuring ultra-thin materials, sometimes it cause wrong results called a "double refraction" , to show the results with twice of actual thickness. Another kind of wrong results is called "pulse...