本课程中，学生将学习找出、辨别和使用英语单词重音、句子重音、语调结构、高频率出现的元音和辅音。
In this course students will learn to discover recognize and use English word stress sentence stress intonation patterns and high frequency vowels and consonants.
耳间水平差异：频率越高，人类都无法辨别声波的到达时间。
Interaural level differences: For higher frequencies, humans are unable to discern the time of arrival of sound waves.
由此阐明了金属胶接蜂窝结构面板上小凹坑处声阻探伤“异常指示”的原因，以及改变激励频率有可能辨别是否脱粘的理论依据。
Whereupon the reason of "abnormal indication" in All of small pits on the surface of metal honeycomb adhesive bonded structure and the theoretical basis for the probable distinguishing of debonded ar…
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