preliminary selection短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 🌏初选评选；初筛；初赛 The preliminary selection of water chemical demineralization systems was discussed, and the method for selection bed types on the basic of original data was given in this paper. 本文讨论了化学除盐系统的初选问题，给出了根据原始数据初步选择床型的方法。 cnki