three-group theory

At present, there are three strands to commerce clause theory.

在当前, 《商业条款》理论有3个组成部分.

The scientist elucidated his theory by three simple demonstrations.

这位科学家以三个简单的实例来说明他的理论.

30 years ago, scientists came up with the theory that protons and neutrons are composed of three smaller particles.

30年前，科学家们提出了质子和中子是由三种更小的粒子组成的理论。

In theory, three things could happen.

推测起来, 有三种可能性.

Through studying the theory of effective competition and the standards of measuring the effective competition, this paper puts forward the target mode of realizing the effective competition in our national telecom industry from three aspects of the market structure, the market conduct and the market performance.

本文通过对有效竞争理论及其衡量标准的研究，从市场结构、市场行为、市场绩效三个方面提出了我国电信业有效竞争的目标模式。