查询词典 audio frequency

Compared with the conventional electric methods,the Controlled source audio-frequency magnetotellurics method is featured of large prospecting depth,portable equipment and high lateral resolution.

上世纪五十年代，在卡尼亚(L Cagn-iard)论文[1]的基础上，发展形成了基于观测天然场大地电场和磁场正交分量，计算视电阻率的大地电磁测深方法。

The whole text designs the demand system in two parts of the hardware and software by divided several parts, that include the transplantation of the μ c/ OS-Ⅱembedded operate system transplanting into the ARM microprocessor , the communication of the USB interface in PC, the transplantation of the FAT16 file system transplanting into the μ c/ OS-Ⅱ embedded operate system, and the program design of the man-machine interface and the digital audio-frequency decoding.

全文从硬件和软件两个部分，分多个模块来安排设计我所要求的系统，其中包括μc/OS-Ⅱ嵌入式操作系统在ARM微处理器上的移植，与上位机上USB接口的通讯，FAT16文件系统在μc/OS-Ⅱ嵌入式操作系统上的移植，以及人机界面和数字音频解码的程序设计等。

MP3 is a portable music player using file-compress form that grants digital audio-frequency file wonderful quality under the circumstance of low-bit compressing rate.

MP3数字音乐播放器是一种采用文件压缩格式，使数字音频文件在低比特压缩率的情况下，仍有比较上乘播放质量的便携式音乐播放器。

Following the method commonly used in the detecting of geological structure and water gush in coal mines, we carried out a test exploration of audio-frequency electric perspective in No.

常规电法仪器测量精度低，抗干扰能力差，无法抵抗巷道铁轨以及运行矿车的强大直流电干扰，因而不能胜任金属矿的井下巷道探测任务。

If Pu Carter and favors Litt to develop the audio-frequency oscillator is starts its undertaking profession behind in their apartment garage, Apple Company's Qiaobusi and Wards Nick are also starts its undertaking profession in its garage.

如普卡特和惠利特开发音频振荡器就是在他们公寓后边的车库里开始其创业生涯的，苹果公司的乔布斯和沃兹尼克也是在其汽车库里开始其创业生涯的。

This system adopted microprocessor 89C51 as the kernel component, and consisted of limiting amplifier circuit, buffer circuit, level indicating, audio-frequency decoding circuit, coding and decoding system for microprocessor, COM port communication circuit and etc.

系统以单片机89C51为核心部件，由限幅放大电路、缓冲电路、电平指示、音频解码电路、解码指示、单片机解码编码系统、串口通讯电路等模块组成。

Methods:An em bedding audio-frequency electric stimulator was used in the rabbit's sciatic nerve defect bridged with auto genous FTMG.The graft appearance and vascular growth of its surface were observe d at 4,8 and 12 weeks post-operation respectively.

在自体冻融骨骼肌移植体桥接兔坐骨神经1.0 cm缺损时应用全置入式音频电刺激器，分别在4，8，12周观察移植体外形及表面血管情况，神经组织学，神经电生理，神经免疫组织化学和透射电镜等指标。

The technique of audio frequency slag melting has been exploited for top and bottom combined blown converter in 150 t combined blowing converter of Tangshan Iron and Steel Company.

在唐钢150 t复吹转炉上开发出适用于百吨以上顶底复吹转炉的音频化渣技术，并根据音频曲线实现了转炉吹炼操作的量化分级管理。

Using 2MHz pulseultrasonic Doppler probe, the index of hemodynamics such as blood flow rate、audio frequency、vascular pulsation of bilateral vertebral and basilar arteries were detected in order to analyze the diagnosis of cervical spondylosis involoving vertebral artery by Transcranial Color Doppler through the occipital foramen. Results: of all 108 carses, 80 cases were positive(positive rate 74.7%). In CSA group,cases of low flow rate were 45.6%,cases of high flow rate were 28.7%,and cases of no...

为分析经颅多普勒检测椎动脉型颈椎病的诊断价值，采用配对研究方法，用 2MHz脉冲多普勒探头经枕骨大孔窗口，检测左、右椎动脉及基底动脉的血流速度、流向、音频、血管博动指数等血流动力学指标，结果显示 10 8例患者有 80例异常，异常率 74 7%，并发现CSA组低流速者占 45 4 %，高流速者占 2 8 7%，正常流速者占 2 5 9%，与正常对照组间有显著差异(P 0 1)，总体而言，低流速型是CSA的主要特征之一。

Most work about musical score recognition is based on MIDI format file; however, most musical data are stored in audio frequency format. Therefore, this paper discussed a musical score recognition method from WAV format file including solo music signal, adopted the Discrete Cosine Transform combined with energy, and presented a principle of least derived notes.

大多数乐谱识别工作都是在MIDI格式文件下进行的，而音乐数据大多采用音频格式存储，为此讨论一种从WAV音频文件的独奏乐曲信号中识别出乐谱的方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。