针对不同的环境，可能需要做些调整，但是基本上就是模仿他人的理论。
You may have to adapt it to a particular environment, but basically it is copying other ideas.
物理标准模式理论中有一项极为重要的试验，该试验检测的是宇宙空间中3中质量最轻元素的确切丰度，即需要列出到目前所发现的基本粒子与将它们融合起来的各种作用力。
The exact abundances of the three lightest elements are an important test of the so-called Standard Model of physics-the list of fundamental particles found so far and the forces that link them.
本系统解决的第一个问题是：IRT理论模型有较严苛的基本假设，因此需要建设大样本配合的题库。
The first problem that the system faces: as IRT theory model is imposed severer basic assumptions, so large groups of samples are needed to build the Item bank.
应用推荐