By contrast, free software users come to have both the system knowledge and the software selection to experiment.
相反，自由软件用户既有系统知识也有软件选择体验。
2
My selection for this experiment was the 40-hour TiVo.
对于这个实验，我的选择是40小时的TiVo。
3
Several feature selection methods were analyzed. An improved mutual information algorithm was proposed. The experiment results showed that improved mutual information algorithm was feasible.