1. This paper is intended to study the relationship between the perception and production of two nasal codas by Japanese learners of Chinese Putonghua. 本文研究了日本学习者感知和产生汉语普通话鼻音韵母之间的关系。
2. This article reviews the progress in research on codas and scattering of seismic waves made by Chinese seismologists, coda of seismographs is a phenomenon of scattering. 本文综述了中国地震学家在有关尾波及散射问题上的研究进展。
3. Fueling the evolution of cetacean communication is an ability, observed in dolphins, humpback whales and sperm whales, to pass songs and codas between generations and individuals. 通过观察海豚、驼背鲸和抹香鲸得知,促进鲸目动物通信进化的是一种在每代以及每个个体间传递鸣叫和强音的能力。