Using the same test-driven development techniques, I created an alternate version of the classifier, which appears in Listing 2.
采用相同的测试驱动开发技术，可以创建该分类器的可替换版本，如清单2所示。
The analysis shows that this kind of dynamic classifier is typical development direction of coal classifier.
分析表明，这种组合式动态可变速旋转粗粉分离器代表着粗粉分离器的发展趋势。
应用推荐