1) free sound field
自由声扬<声>
2) free sound field
自由声场
1.
The analysis of free sound field in the anechoic room;
消声室自由声场仿真分析
3) free field
自由声场
1.
The set up of free field acoustic space and the design of device for spatial acoustic stimuli.
研究主要分为三部分:第一部分:自由声场的建立与空间给声装置的研制声源定位是长久以来听觉功能研究的热点问题。
2.
The influence for free field by the measuring plate,which is used to lay the sound source,is related to the frequency.
消声室内放置声源的平台对自由声场的影响与频率有关。
3.
To perform an inspection test of free field in anechoic room, some questions that are the test signal, the directivity of sound source, and the sound center calibrating of sound source must be paid attention to.
要做好消声室自由声场的鉴定测试,必须考虑采用什么样的信号源、声源的指向性、声源场中心的校正等几个重要问题。
5) semi-free acoustic field
半自由声场
6) loudspeaker source
扬声器声源
1.
Base on the analysis of the national standards on field sound insulation measurement using loudspeaker source,an improved method which put a sound source at several points instead of a single point is proposed.
通过对现行国家标准关于隔声现场测量中扬声器声源法的分析,提出扬声器声源多点放置隔声现场测量的改进方案。
补充资料：必然王国与自由王国(见必然与自由)
必然王国与自由王国(见必然与自由)
realm of necessity and realm of freedom
of口1 Iun Wongg口0 yU ZlyQU wangguo必然王国与自由王国(realmandrealm of freedom)necessity见必然与自由。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条