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- heart sound amplifier 心音放大器
- Then on the heart sound envelope, S1 and S2 were recognized. 然后利用数学形态学方法提取心音信号的包络;
- TV receiver for bus is the kernel equipment of bus onboard digital TV system, integrating digital TV mobile receiver (STB),Power supply control circuit and sound amplifier. 公交控制箱是公交车所载数字电视系统的核心设备，内部集成了数字电视移动接收设备（机顶盒）、电源控制电路和音频功放。
- It consists of a phonocardiogram sensor, a heart sound collecting and processing circuit, and a computer. 该系统由心音传感器、心音信号采集处理电路及计算机组成。
- The 3rd heart sounds is physiology sex, without pathology meaning. 第三心音是生理性的，没有病理意义。
- Cardiovascular examination showed a normal first heart sound but a prominent pulmonic second sound, with no audible murmur of tricuspid insufficiency. 心血管检查显示,第一心音正常,但肺动脉第二心音亢进,未听到三尖瓣关闭不全的杂音。
- S3 .The third heart sound (S3, or ventricular gallop) is low-pitched and best heard at the apex with the stethoscope bell. S3第三心音，又叫室性奔马律，低音调，用钟式听诊器在心尖处听得最清楚。
- It also gives a safety design problem analysis using an electret capacitor microphone to pick-up the heart sound signals. 该电路涉及到放大、滤波、电平抬升等电路,并给出了安全设计问题,利用驻极体电容传声器来拾取心音信号。
- The heart sounds are muffled when the pericardial sac is distended with fluid. 当心包充满液体时心音减弱。
- S4.The fourth heart sound (S4, atrial gallop, presystolic gallop) is also the result of altered ventricular compliance.Its cadence has been likened to the soft a of appendix. S4第四心音，又叫房性奔马律，收缩期前奔马律，也是心室顺应性改变的结果。
- Huiying Liang.Iire artimo."A heart sound feature extraction algorithm based on wavelet decomposition and reconstructin,"IEEE,vol.20,no,3,PP.1539-1541,1998. 李勇;高小榕;郭爱雯.;基于连续小波变换得心音信号时频分析
- "Cross the weald of the mind, through heart sound jump about, see small and softly, hear quietly, the bitterness love of[with] etc. is in the faraway distance. 穿越心灵的旷野，透过跳动的心音，细细地看，静静地听，苦等的爱情在遥远的距离之中。
- Firstly,the original heart sounds signal was preprocessed by Huang Transform. 首先利用黄变换对心音信号进行预处理;
- Situation for the sound amplifying system of opera house in National Center for Performing Arts which base on the physical sites. 介绍了以在物理站点为基础构建的国家大剧院歌剧院扩声系统概况。
- The design features and experience of architectural acoustics and sound amplifying system for National Main Sports Venues. 介绍了国家体育场"鸟巢"的建筑声学及扩声系统设计的特点与设计体会,对设计过程中出现的问题进行了探讨。
- My heart beat thick in the course of the interview. 在面试过程中我的心跳得厉害。
- The comb filtering effect which was caused by improper use of microphone during record and on-site sound amplifying was analyzed combined with acoustic theories of modern music. 摘要结合现代音乐声学，对录音及现场扩声传声器使用中的关于梳状滤波效应的误区进行分析。
- An instrument consisting of microphones and recording equipment used to monitor and record heart sounds and murmurs. 心音描记图由话筒和记录装置组成的仪器，用来监测和记录心脏声音和杂音
- A graphic record of heart sounds and murmurs that is produced by a phonocardiograph. 心音描记图通过心音描记器产生的心脏声音和杂音的图画记录
- Auscultation: heart sounds normal, but soft pan systolic murmur at apex radiating to axilla. 听诊:心音正常,但心尖问及收缩前柔和杂音,向腋窝放射。
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