自适应声音

native son───土著

native sons───土著

adaptive optics───自适应光学；适应性光学仪器（天文学使用的镜子，其形状可以改变以补偿光线受大气之扭曲）

adaption───n.适应；改编本

adaptions───n.适应；改编本

adaptive───adj.适应的，适合的

adaptively───adv.适应性地

In this paper, an experimental study on adaptive active control of sound trans-mission through a finite length water-filled cylinder in underwater is carried out.───本文研究了有限长充水圆柱置于水中，外声场透射形成的腔内声场自适应有源控制实验研究。

NLMS adaptive sound echo-counteracted algorithm is introduced in the paper. The hardware and software of the sound echo-counteracted device are realized by DSP.───介绍了自适应NL MS声回声抵消算法，并运用DSP对声回声抵消器进行软硬件实现。

The system is introduced in three aspects, the introduction of adaptive and active sound absorption principle, hardware design and the results of experiments.───本文通过自适应有源吸声原理的介绍、系统的软硬件设计以及系统实验结果的讨论等三方面内容来介绍本系统。