sound velocity 中文意思是什麼
sound velocity
解釋
聲速-
Ab initio calculations of elastic constants and sound velocity of sodium iodine
碘化鈉彈性常數和聲速的量子力學從頭算 -
The anton paar density and sound velocity analyzers combine two independent parameters, density and sound velocity, to cover a wide range of applications such as quality control in beer and soft drink production, concentration determination of sulphuric acid and oleum or ternary solutions
安東帕密度和聲速分析儀結合兩種獨立參數- -密度和聲速，覆蓋大范圍的應用如：啤酒和軟飲料生產中的質量管理、硫酸、發煙硫酸或三元混合液體濃度的測定。 -
Finally, at long ranges, the blast wave becomes essentially a sound wave and its velocity approaches ambient sound velocity.
最後，在很遠的距離處，爆震波基本上就變成一種聲波，其速度已接近周圍的聲速。 -
In this paper, taking the measured error sound velocity profile as the initial guess value, the sound beam travel times and beam angle recorded by the multi - beam system and the generalized linear inversion method are used to get a sound velocity profile close to the actual sound velocity profile, and the inversed sound velocity profiles have contributed to the reduction of sound velocity profile error
摘要以測得的誤差聲速剖面作為初始猜測值，利用多波束記錄到的波束傳播時間和波束角等信息，通過廣義線性反演得到一個與實際聲速剖面比較接近的聲速剖面，這有助於減少聲速剖面的誤差。 -
A discussion on the receiving signal of transducer in experiment of sound velocity measurement
聲速測定中換能器接收信號探析 -
The methods and comparison of measuring the sediment ' s sound velocity in sea floor
海底沉積物聲速測量方法及其比較 -
Discrimination of seafloor sediment properties from sound velocity waveform and amplitude
用聲學三參數判別海底沉積物性質 -
Normal - mode attenuation coefficients for shallow water with negative sound velocity gradient and sandy or muddy sediment bottom
質海底的負聲速梯度淺海中簡正波的衰減系數 -
This paper introduces a virtual oscillograph v0. 94 for measuring the sound velocity. the result is very precise. it also enriches the classical physics experiment with modern contents
摘要介紹了某于聲卡的虛擬示波器v0 . 94的硬體準備、電腦聲卡設置以及調整和使用方法。利用虛擬示波器測定聲速，形象直觀，實驗結果精確，是經典物理實驗現代化的有益嘗試。 -
All the improvements included the modifications on the sound velocity, characteristic mach number and the mach number at the grid interface. several 2d flow fields which had shock, shear flow, rarefaction wave, or turbulent boundary layer and the combination of them were computed
該格式改進了聲速、特徵馬赫數的處理方式，對網格界面馬赫數進行了修正，並求解了含有脫體激波、斜激波、剪切流、膨脹扇、及湍流附面層等流動特徵的復雜流動。 -
In influencing measuring velocity, the author emphasizes on researching on the compensation for sound velocity ; in the processing of data, gives processing results
在多普勒測速誤差一章中，重點對聲速補償技術進行了研究，並在數據處理部分，給出了處理結果。 -
The change of sound velocity with pressure, dryness degree, void - fraction, and phase - transition coefficient are analyzed. some important conclusions are derived
分析了兩相流體中音速隨壓力、干度、汽隙率、相變系數等的變化關系，並從中得出了一些重要的結論。 -
And according to the testing theory of sound velocity in medium, this paper puts forward a new way of testing sound velocity in medium automatically by means of the dds acousto - optic mode lockers
根據介質內聲速測試原理，提出了採用dds聲光鎖模器自動測試介質內聲速的實驗方案。 -
At the same time this paper calculates the effect of train velocity on noise propagation, when mach number is 0. 1, sound velocity less effects on noise level ; when mach number is 0. 4, the difference value is about 2db whether to consider the sound velocity. so when the train velocity is not very high, the effect of sound velocity may not be considered
本文同時計算了列車運行速度對噪聲傳播的影響，當馬赫數為0 . 1時，聲音的傳播速度對聲級的影響是很小的，當馬赫數為0 . 4時，考慮聲速與不考慮聲速影響的最大值的差值大約為2db左右，因此在列車速度不是很高的情況下可以不考慮聲速的影響。 -
Moreover, the effects of the system parametric ( such as baseline length, time measure error, sound velocity fluctuate and buoys errors ) on localization accuracy are studied. the laws of the bistatic tol and bol localization algorithm are obtained
同時，通過對各種系統因素，如基線長度、系統測量誤差、聲速波動、浮標偏移等參數對演算法性能影響的分析，得出了採用tol和bol方法進行定位時，定位誤差的分佈規律。 -
Analysis of two measuring methods of sound velocity
對兩種聲速測定方法的剖析 -
Test method of ultrasonic sound velocity for spheroidal graghite cast irons
球墨鑄鐵.超聲聲速測定方法 -
New method to calculate temperature coefficient of sound velocity at high pressure
高壓下聲速溫度系數的一種新演算法 -
Experiment research on sound velocity measurement in different types of sediments
在不同沉積物類型中的聲速測量實驗研究 -
Three characteristic features, such as average velocity of sound, deviation coefficient of sound velocity, and deviation coefficient of amplitude are extracted from four kinds of testing data which are sound velocity, amplitude, frequency and waveform in this paper. fuzzy analysis and artificial neural network are combined to form an intelligent system with similar functions to human brain to classify grc, aerated concrete, hollow brick, solid brick and concrete block. the accuracy of this system is up to 95 % in field tests
由超聲脈沖法獲得4種檢測信息聲速、波幅、頻率和波形，從中提取3個特徵量：平均聲速、聲速的離差系數和波幅的離差系數，利用模糊分析方法和人工神經網路相結合對grc 、加氣混凝土、空心磚、實心磚、砌塊5種墻體材料進行種類識別，形成一個智能化的、具有類似人腦功能的系統.經現場實測證明，判別的準確率達95 %以上。
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