two-stage experiment

New concept of two critical angles was suggested to fracture analysis of a slanted crack. A discussion was especially made of the material choice for small slant angle experiment.

本文提出并应用两个临界角的概念对斜裂纹断裂问题，特别是有关试验的选材问题进行了讨论；

Mingle these two substances before the experiment.

实验之前先将这两种物质混合起来.

In the conditions of starting and closing the compensation system of environment, two group datas from the experiment which has vast difference were obtained.

在启用和关闭机床环境补偿系统的条件下，得出了两组相差较大的实验数据。

To find out the effects of applying the trace model of speech perception in junior middle school English listening teaching, a teaching experiment which lasted two and a half months was carried out.

为了证实言语听辨轨迹模型理论对初中英语听力教学的作用，笔者提出了实验假设，并进行了两个半月的教学实验。

When the team examined the results of the experiment more closely, they noticed that the monkeys tended to underestimate a sum compared with a single symbol when the two were close in value — sometimes choosing, for example, a 13 over the sum of 8 and 6 ．

当研究小组更仔细地检查实验结果时注意到，相较于单个的符号，当两个数值较接近的时候，猴子们总是把总数算低——举个例子，有时它们会选择8+6的结果是13而不是14。