many: adj.(more; most) (opp. few; cf. much) 许多的，多数的，很多的，多。 ★ 1. 在口语中，尤其是在英国口语中，除用作肯定句的主词或接用于 too, so, as, how 之后以外，带有否定、疑问、条件意义：M- people think so. Did you see many people？ 2. 在其他肯定句中常作 a lot of
The parallel combinatorial spread spectrum provides high spectral efficiency and the data rate of the parallel combinatorial spread spectrum is higher than that of the direct sequence spread spectrum . this thesis studies on the mapping between data and spread sequence in the parallel combinatorial spread spectrum system and presents a mapping method based on the lexicographic order . the mapping method resolves the many to one mapping problem of the past method 本文研究了并行组合扩频中数据和扩频序列之间的映射方法，指出了已有的一种不定方程求解算法中存在的映射不唯一问题，应用组合数学中的相关理论，将映射问题转化为厂组合问题，提出了基于字典顺序的并行组合扩频数据映射算法，该算法具有普遍性，解决了原有算法中的多一映射问题。
