second sound
英 [ˈsekənd saʊnd]
美 [ˈsekənd saʊnd]
网络 第二声; 第二心音
双语例句
- But this confusion vanished; a second sound similar to the first roused him thoroughly; he looked and recognized the fact that these two stars were the lanterns of a carriage.
这时，他才从梦中渐渐清醒过来，一声和第一次相同的响声把他完全惊醒了，他注意看，这才看出那两颗星原来是一辆车子上的挂灯。 - The second sound is written as the uh as in pull.
的第二个音写做pull中的，但是它更接近于boo中的[u：]音，但是唇形没有收得那么紧。 - They froze as usual when they heard the second sound.
而听到第二种声音的时候还是会害怕。 - Methods: withdraw the envelope of heat sounds by using Mathematic Morphology and normalized Shannon energy, extract first heart sound and the second heart sound.
利用数学形态学和归一化香农能量两种方法分别提取了心音的包络，突出了第一心音、第二心音等特征。 - The transient heat transfer processes in Hell are also studied, and the film boiling processes can be well described by the second sound effect in Hell.
对超流氦中的非稳态传热研究表明，热脉冲作用下的膜沸腾形成过程可由超流氨中的第二声（热波）进行很好的描述。 - The first two leaders sound like great bores; the second two sound anything but.
头两个领导者听起来像是“大讨厌鬼”；后两个却不是。 - The second is a sound strict pass the core access mechanism and optimize the industry market structure.
二是健全以严把关口为核心的准入机制，优化行业市场结构。 - The principles, characters and physiological meaning of first heart sound and second heart sound.
第一和第二心音产生的原理、特点及其生理意义；心电图各波的意义； - Policymakers must distinguish two objectives: the first is macroeconomic stability; the second is a sound financial system.
决策者必须区分两个目标：一是宏观经济的稳定；二是金融体系的健全。 - Good agreement of the theory with the measurement shows that this approach can effectively describe the second harmonic sound field in multi-layered biological media.
研究结果表明，此方法可以有效地描述聚焦超声波在层状生物媒质中的二次谐波声场。 - In the present article, characteristic line method is used to solve numerically the problem of the second heart sound of one-dimensional model. The result obtained coincides with that of stein's.
利用特征线法对第二心音的一维数学模型进行了数值计算，计算结果与Stein的计算结果吻合良好，并且提出了第二心音的二维轴对称物理模型。 - Asymptotic Behavior of Discontinuous Solutions to the Semi-linear Thermoelastic Systems with Second Sound& Cauchy Problem to the Case of Variable Coefficients
带第二声速的半线性热弹性力学方程组的间断解&变系数情况的Cauchy问题 - Increased pulmonic second heart sound and systolic murmur were the most frequent signs.
最常见的体征为肺动脉瓣区第2音亢进及收缩期杂音。 - Second, to sound the learning supporting service system;
二是健全远程开放教育学习支持服务系统； - Second is comparatively sound system;
比较健全的教育体系； - Abstract: The second harmonic sound beam distribution nonlinearly generated by a conical source has beed derived.
本文推导了锥形声源的非线性二次谐波声场分布。 - Mathematical Model and Numerical Calculation of Second Heart Sound
第二心音的数学模型和数值计算 - Results: Their main cause to colour Doppler echocardiography were murmur, cyanosis, panting, asphyxia, feeding-difficulty, Loud pulmonary valve second heart sound.
结果：进行心脏彩超检查的原因以心脏杂音、紫绀、宫内窘迫或新生儿窒息、呼吸急促、肺动脉瓣第二心音亢进最常见。 - Objective An algorithm located the first sound ( S 1) and the second sound ( S 2) on phonocardiogram ( PCG) was introduced.
目的本文介绍一种在心音图（PCG）中定位第一心音（S1）和第二心音（S2）的算法。 - Study of the second harmonic sound field from a circular piston source and the influence in the nonlinearity parameter tomography
圆形平面换能器产生的二次谐波声场及对非线性声参量成像的影响 - Second, the sound recognition in the process of listening comprehension and the working principle of the sound recognition system are described.
然后，结合目前在听力教学中存在的问题，提出语音识别阶段是听解过程中的关键阶段并说明了在语音识别阶段起决定作用的语音识别系统的工作原理。 - Influence of the second sound and diffusive process on the transient heat transfer in bath of superfluid helium
第二声传热及热扩散作用对超流氦瞬态传热的影响 - 33 8% of the patients were revealed to have lowered respiratory sound at the pulmonary base. Occasionally, fine moist rales accompanied by the accentuation of pulmonic second sound ( P 2) or the diastolic gallop rhythm.
23例（33.8%）患者肺底部呼吸音减低或少许细湿性口罗音伴有肺动脉第二音亢进或舒张期奔马律。 - The acoustic characteristics of the first sound area of the Hartmann whistle, the best location of the first sound area and the best location of the second sound area are studied, and the first and second best location are compared. 3.
研究了Hartmann哨的第一发声区，第一发声区最佳发声位置、第二发声区最佳发声位置的声学特性，并对第一和第二最佳发声位置进行了比较。 - The first heart sound and the second heart sound are considered to be the vibration signals which are generated by the collision in the process of value opening and closing. All of the vibration signals contain many kinds of transient non-steady ingredients.
传统意义上讲，第一心音、第二心音的产生被认为是心脏瓣膜在开合过程中碰撞所产生的振动信号，这些信号包含多种瞬态非平稳成分。 - Partial the second heart sound S2 may have been covered by noises, and the data packets losing in the transmission process may also make S2 not normally collected.
部分第二心音S2可能已经被噪声等杂音信号淹没，同时也可能是传输过程中数据的丢包导致S2无法正常采集到。 - This paper uses the Empirical Mode Decomposition ( EMD) envelope algorithm for the extraction of heart sound envelope. It lays a foundation for the positioning and time-domain characteristics extraction of the first and second heart sound. 3.
本文采用经验模态分解（EMD）包络算法进行心音包络的提取，为第一心音和第二心音的定位以及时域特征的提取奠定了基础。 - Armed with some theories of listening teaching and researching, and the related theories of the information processing system, this paper tries to point out that the main process of listening comprehension is sound discrimination, or the perception ability of the second language sound.
本文首先通过相关的听力教学和研究的理论和心理学的信息加工系统理论，指出语音识别即对二语语音的感知能力是听力理解过程中的关键。 - The main work of this paper is focused on three aspects as follows. ( 1) A hemodynamics-based first and second heart sound generation model is proposed.
本文进行了3项工作。（1）提出了基于血流动力的第一心音和第二心音产生模型。