查询词典 Agapornis

As a result, the songs sound well.There were a series of special acoustic changes in Budgerigar and Psittacula Agapornis\' vocal after the section of NXIIts.

亚鸣禽虎皮鹦鹉及牡丹鹦鹉在断NXlltS后其叫声的声学特性出现了一些特殊的变化。

The natural vocalizations of non-passerine(Columbia livia domesticus, Chicken), sub-oscinepasserine(Melopsittacus undulates. Psittacula Agapornis), Oscine passenon and the vocalizations of sub-oscine passerine(Melopsittacus undulates, Psittacula Agapornis) after sectioning NXIIts were recorded by SHARP GF-6060 recorder. Cooledit2000, an acoustic analyzing software, was used to produce the original wave and it\'s expanded time windows, sonograms, spectrums and power static histograms. To distinguish the acoustic differences of their natural vocal and to find the changes of sub-oscine passerine\'s song after sectioning NXIIts, the above results is acoustically analyzed and compared, expecting to provide some advantage to further explaining the mechanism of vocal production.

本实验以非鸣禽，亚鸣禽以及鸣禽为实验材料，记录其正常叫声以及亚鸣禽断NXIIts后的叫声，用Cooledit2000声音处理软件制出原始信号及其展开图，声图，频率谱图以及能量统计分布图，并对所得结果进行声学比较分析，以期得到鸣禽、亚鸣禽及非鸣禽叫声在声学特性上的差异，以及亚鸣禽在断神经后叫声的声学变化，旨在为进一步解释其发声机制提供帮助。

Any of various small Old World parrots, especially of the genus Agapornis, often kept as cage birds and noted for the apparent affection between mates.

相思鸟，情鸟一种东半球的小鹦鹉，尤指属于小鹦鹉属的一种，经常养在鸟笼里，以雌雄间恩爱闻名

In the sonograms of Psittacula Agapornis after the section of right side NXIIts the ascending parts of the tone disappeared. This causes their vocalizations became the descendent-call.

牡丹鹦鹉在断右侧NXlltS后其声图中音调上升支消失，因而其叫声变为以降音调为主的降调叫声；在断左侧NXlltS后的声图中，其基本音以上的谐波成分减弱或消失而在断双侧神经后其声图表现为一系列具有较低基频的宽带谐波谱。

The call developmental process of Psittacula agapornis consists of five instinct phases according to its call character. In the first phase （congenital cal1 phase, CCP, 0~12 day of age）, the juveniles only produce single syllable with short syllable length. The second phase（blank-model-forming phase,BMFP, 13~30 day of age） is important for formation of vocal learning pathways. During this phase, the calls characterized by more and longer syllables. In the third phase （call-model-forming phase,CMFP, 31~45 day of age）, the call development is guided by a model system for vocal learning, vocal learning is engendered so that some calls with multi-syllables with UP1 are produced, principal frequency has increased about by 920 cent, the number of note is double that of second phase. The short-term memories are transformed into long-term memories in the forth phase （call-feedback-learning phase,CFLP, 46~90 day of age）. The call of juveniles is a close match to tutor call which accompanied by double various sounds with BS and UP1, and more resonance components were formed. Second principal frequency has increased about by 970 cent, the number of note increases by 2.6~3.0 times. During the fifth phase （excellent call phase,ECP, after 91 d）, vocal motor pathway is developed and the calls are accompanied with most stable, harmonious vari-tone and complex repertoire.

牡丹鹦鹉的鸣声发育分为5个时期。0~12 d为先天性鸣声期，鸣声特征为以基本音为主音的单音节单音调声，声长短。13~30 d为空白模板形成期，鸣声特征为以基本音为主音的多音节单音调声，声长和音量显著性增加，表明发声学习通路开始形成。31~45 d为鸣声模板形成期，鸣声特征为以第1陪音（UP1）为主音的多音节单变调声，声长和音量显著性增加，主音频提升约920音分，涵盖的律音数增加1倍，表明发声学习模板逐渐形成，发声学习开始。46~90 d为鸣声反馈学习期，鸣声特征为以BS和UP1为主音的双变调声，声长和音量显著性增加，主音频涵盖的律音数增加2.6~3.0倍，第2主音频提升约970音分，表明稳定模板逐渐形成，短期记忆逐渐向长期记忆转化。91 d后为完美鸣声期，鸣声特征为以UP1为主音的复合变音调声，声长、音量、主音频的提升和涵盖的律音数都趋于平稳，鸣声稳定而和谐，表明发声运动通路基本形成。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。