They pass into conventionalsymbols in the multiform uses of daily speech; they become commonplace factors of a commonplace present, and remain historic only to lexicographers and philologists.
它们作为传统的符号使用在各式日常言语里，变得司空见惯，它们的原意只限于词典编纂者和语言学家。
2
The simulation results indicate under multipath channel for low SNR, the new algorithm has lower probability of failure than the conventional algorithm by adopting proper training symbols.