一道物理题,求英语能人sound is a pressure wave that consists of compressions and rarefactions.Explain constructive interference of two sound waves in terms of pressure variations这题不是这么高深的问题啊。还是因为语言问题

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一道物理题,求英语能人sound is a pressure wave that consists of compressions and rarefactions.Explain constructive interference of two sound waves in terms of pressure variations这题不是这么高深的问题啊。还是因为语言问题
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一道物理题,求英语能人sound is a pressure wave that consists of compressions and rarefactions.Explain constructive interference of two sound waves in terms of pressure variations这题不是这么高深的问题啊。还是因为语言问题
一道物理题,求英语能人
sound is a pressure wave that consists of compressions and rarefactions.Explain constructive interference of two sound waves in terms of pressure variations
这题不是这么高深的问题啊。还是因为语言问题大家都把这题想的太难了吧。我是不知道怎么翻译成中文好，因为没学过这方面的知识。

一道物理题,求英语能人sound is a pressure wave that consists of compressions and rarefactions.Explain constructive interference of two sound waves in terms of pressure variations这题不是这么高深的问题啊。还是因为语言问题
大概意思.
声音是压力波(我想是纵波的意思),由紧密和稀疏的部分组成(疏部和密部吧).解释一下两条结构干涉的声波的变化.(最后没怎么明白,我想它要解释两条声波的干涉...哦 相长干涉（constructive interference）就是干涉增强振幅什么的.)

一道物理题,求英语能人sound is a pressure wave that consists of compressions and rarefactions.Explain constructive interference of two sound waves in terms of pressure variations这题不是这么高深的问题啊。还是因为语言问题 求英语写作文能人解答? 求能人! 求一道物理题 一道物理题,求思路 求问一道物理题 一道物理题,求思路 求一道物理题详解? 求解决一道物理题 求一道物理题、、、、初三 一道物理题,求理由! 一道物理题,求原因! 一道物理题求详解 求一道物理题 一道物理题求详解 一道美国大一声学的物理题挺基础的 For a speaker whose sound power output is 140 dB,the distance from the speaker at which the sound level will be reduced to 96 dB is ___m. 一道物理题!求大神进 物理题一道,求画图方法