查询词典 acoustic

A fade-out acoustic signal and a fade-in acoustic signal are read out from the memory which is then compacted and expanded on the time axis.

从存储器中，读出淡入侧的信号序列、和淡出侧的信号序列，并进行时间轴压缩扩展。

A method for shifting a pitch of acoustic signals, which are expressed in terms of a series of digital signals, to an optional pitch, uses a compacting and/or expanding process on the time axis and cross-fades a fade-in acoustic signal, stored in a memory.

一种音程变换方法，用时间轴压缩扩展和交叉渐变处理将数字信号序列表示的音响信号的音程变换为任意音程。将音响信号存储到存储器中。

Fixed shell type vector hydrophone belong to mechanical type acoustic vector hydrophone, however moving shell type vector hydrophone belong to inertial type acoustic vector hydrophone.

本文研究的是三维同振球型矢量水听器，该水听器由球体外壳、压电加速度计、前置放大器、质量块、填充物、柔性悬置元件和框架组成。

Based on the well-know Pennes'' bioheat equation,we calculated theoretically temperature field of HIFU-induced BFR in tissue,and measured spatial temperature rise in BFR induced by HIFU in freshly excised cow liver at constant acoustic intensity and exposure time, and studied the effects of the physical parameters of focused ultrasound transducer such as frequency,outer radius and curvature radius,focal depth, and acoustic intensity and exposure time on the temperature field of HIFU-induced BFR.

采用生物热传导方程理论计算了HIFU生物学焦域温度场，采用微型热电偶探针测量了HIFU辐照离体牛肝时靶组织温度分布；研究了聚焦超声换能器的物理参数、辐照深度和治疗剂量对HIFU生物学焦域温度场的影响；研究了HIFU在牛肝组织中的传播衰减。

The present experimental study investigated the mechanism of the self-exciting thermo-acoustic oscillation and the forced thermo-acoustic oscillation.

通过实验，揭示了热声自激振动与热声强制振动现象发生的条件与机理，研究了热声发动机的关键部件——板叠的形状与材质对系统的起振温度的影响。

Reoccupy much general carves position of observation color blood stream, all patients all have chromatic much general to strap supersonic examination result and operation pathology result. 2 results histology of lens of antrum of the 1 palace in diagnosing 38, pathology diagnoses 2 · for polyp of the film inside the uterus 36, supersonic diagnose accord with rate for 94 · 7%, by accident examine 2 (5 · 3%), hyperplasia of the film inside its neutron palace is ill 1, tumour of the flesh below uterine mucous membrane 1. 2 acoustic image of 2 · behave chart of acoustic image of polyp of the film inside the uterus to be tit shape, mulberry shape or glossal shape more now, polypous diameter 6~38mm, average diameter 13 · 4mm, single shot 26, send 10 more.

再用多普勒观察彩色血流状态，所有患者均有彩色多普勒超声检查结果及手术病理结果。2结果2·1诊断38例中宫腔镜、病理组织学诊断为子宫内膜息肉36例，超声诊断符合率为94·7%，误诊2例(5·3%)，其中子宫内膜增生病1例，子宫黏膜下肌瘤1例。2·2声像表现子宫内膜息肉声像图表现多为乳头状、桑椹状或舌状，息肉直径6~38mm，平均直径13·4mm，单发26例，多发10例。

Acoustic Doppler Current Profilers is a new kind of flow measuring device widely used in hydrometry. It uses the principle of Acoustic Doppler instruments to measure flow velocity profile. A short time flow measurement, high resolution, good accuracy, integrity data and great information are the characters of ADCP.

多普勒测流仪是当前在水文行业推广的一种新型测流仪器，该仪器利用声学多普勒原理，测量水流速度剖面，具有测验时间短、分辨率高、精度好、资料完整、信息量大等优点。

A hypercomplex model of acoustic vector sensor array is introduced. The hypercomplex number is used to model holistically the four output signal components of an acoustic vector sensor.

将超复数代数引入矢量水听器信号处理领域，用超复数来整体表示了矢量水听器输出的4个信号分量，并建立了矢量水听器阵列的超复数模型。

Hence, based on acoustic potential function and boundary condition on solid interface, we get reflection coefficient and refraction coefficient of longitudinal wave and transverse wave on solid-solid interface, and provide approximate formula of the reflection coefficient and the refraction coefficient about the first critical angle of incidence. We analyze relation between the refraction coefficient and acoustic impedance.

为此，基于固体介质的声势函数和界面的边界条件，推导了固-固界面纵横波的反射系数和透射系数，以及第一临界角入射情况下反射系数和透射系数的近似公式，并且分析了透射系数与声阻抗之间的关系。

Lande technology since 2000 acoustic testing to explore the mainland market space, at home several times to assume the construction of large-scale acoustic engineering laboratory mission.

朗德科技从2000年开始开拓国内声学测试用房的市场，在国内多次承担大型声学实验室建设的工程任务。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。