large-scale selective examination 大规模选拔性教育考试
Given the scale of applications these days, getting into selective schools has as much to do with luck as it does with merit.
如果从这些天申请的规模来看，被所申请的学校录取，不仅要靠成绩，也要看运气。
The commercial scale test was conducted for impurity molybdenum removal from tungstate solution by selective precipitation method.
对“选择性沉淀法从钨酸盐溶液中除钼”新工艺进行了工业试验。
During the initial stage of oxidation, Cr decreased Fe content in the oxide scale, by which the selective oxidation of Al was promoted.
铬降低了氧化膜内的铁含量，提高了初期氧化膜的保护性，从而促进选择性氧化铝膜的形成。
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