The results show that themodified cen ments have much smaller article sizes and higher specific surface areas;
试验结果表明,改性处理使以上耐火水泥的颗粒尺寸大大降低,比表面积增加;
Although each dimension is composed of several ele-ments, most studies center on one element within each dimension.
尽管每一个维度都由几个因素构成,但是大多数的研究是关注在每一个维度中的某一个因素。
Semiconductor science and technology is one of the greatest scientific and technological ments in the 20th century.
半导体科学技术是20世纪最伟大的科技成就之一。
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