pressure waves 中文意思是什麼
pressure waves
解釋
氣壓波-
Wind direction, wind velocity, air temperature and air pressure have a very great effect on the propagation of pressure waves.
風向、風速、氣溫和氣壓對壓力波的傳播有十分巨大的影響。 -
This method applies the extended strip theory to establish the nonlinear ship motion equations in regular head seas, obtains stable time course by resolving in time domain, and then pressure vectors will be available. the pressure includes static pressure, incident waves pressure, diffraction pressure, radiation pressure, and wave impact pressure, and changed with instantaneous draft of each intersection
該方法應用擴展的切片理論建立迎浪規則波中船舶非線性運動方程，通過時域步進求解獲得船舶剛體運動的穩定時歷，進而給出與船體各橫剖面瞬時吃水相對應的靜水壓力變化、入射波壓力、繞射壓力、輻射壓力和波浪沖擊壓力諸分量。 -
Richard yem sync : under the action of the waves the hydraulic ram ' s blue unit, shown down here on my left, pumps high pressure fluid into these large accumulators
Richard同步解說:在波的作用下，液壓油缸的藍色單元，在我的左邊，將高壓液體泵入大型蓄電池。 -
M ) richard yem sync : under the action of the waves the hydraulic ram ' s blue unit, shown down here on my left, pumps high pressure fluid into these large accumulators
Richard同步解說:在波的作用下，液壓油缸的藍色單元，在我的左邊，將高壓液體泵入大型蓄電池。 -
It is studied that the formation mechanism of taylor bubble and its control method in gas - liquid two - phase flow, which affects the pressure balance and mechanical driving efficiency in the flow of petroleum engineering. experiments show that the formation of taylor bubble in gas - liquid two - phase flow is due to the intensive congregation and amalgamation of small bubbles driven by void fraction waves and that the highly turbulent flow is able to restrain this formation. thus, the flow regime transition may be checked by increasing the flow turbulence and controlling the disturbed frequency
對大管徑氣-液兩相流動中嚴重影響壓力平衡與機械驅動效率的段塞流生成機制和控制方法進行了研究，實驗證明段塞流的形成是由於空隙率波的大幅度增長使氣泡高度集中，並形成聚並所致。強湍流運動可以抑制taylor泡的形成。因此，通過強化湍流或控制擾動頻率可以對氣泡聚並起明顯的抑制作用。 -
Laser, ultrasonic beam and microwave are used in non contacting level measuring systems. laser systems suffer from dirt, ultrasonic sensors are strongly affected by changes of the velocity of sound and usually a pipe is needed to couple the ultrasonic waves into the liquid tank, which is difficult when there is a high pressure or when explosion protection is necessary
壓力式液位測量系統原理簡單、成本低，但測量精度和應用場合有一定的局限性，超聲液位儀精度較高，但設備復雜，一般需要用導管將超聲波傳到被測的液體中，因而安裝維護較麻煩，激光測距系統對環境要求嚴格。 -
The experiment shows mbid can produce the enhanced pressure field at hydrophone array, provide modal domain representation of pressure ( modal functions and horizontal wavenumbers ) and target ' s bearing ( plane waves ), and have good adaptive ability and robustness against mismatch
實驗數據和模擬數據的結合驗證了模基辨識器不僅能夠產生增強的水聽器陣處的聲壓場表示，而且能夠輸出模域表示（模深度函數和水平波數）和目標的方位（平面波模型） ，也具有較好的自適應性及對失配的寬容性。 -
Also the concrete structure ' s service life may be threatened by the negative pressure occurred when waves se parate from the subface of the structures
另外當波浪離開上部結構底面時產生的負壓力作用對混凝土結構的耐久性也是一個很大的威脅。 -
A new method was introduced for testing the fuel injection law of diesel engine via neural network on the basis of the calculation of the pressure waves measured by a sensor clamped on the high - pressure tube of a diesel engine
對用外卡式壓力傳感器測量的柴油機高壓油管壓力波計算噴油規律的方法進行分析，提出了利用人工神經網路檢測柴油機噴油規律的方法。 -
The net acts as a sail and is driven by the pressure of radio waves generated by a huge radio transmitter
這個網在一個巨大的無線電發射器產生的無線電波壓力的驅動下，像船帆一樣運作。 -
The shearing layer is carried by the jet and the eddy is formed because of the instability and selective amplification of shearing layer which will propagate to the downstream. as the eddy impacts the impinging wall, a wave of pressure disturbance with certain frequency is induced. this wave then propagates to the upstream with high speed, and results in the overlap and amplification of the waves when the frequencies of them are close with each other
當前噴嘴流束中的不穩定擾動波在穿過腔內的剪切層時，剪切層對其有選擇放大作用，形成渦環結構，剪切流動中渦環與碰撞壁撞擊，在碰撞區域產生壓力擾動波並向上游反射，在上游剪切層分離處誘發新的擾動的產生，當新擾動與原擾動匹配時，射流上游就被不斷地受到周期性激勵，腔內就產生流體自激振蕩並在後噴嘴出口形成脈沖射流。 -
With new techniques developed through modern chinese medicine, pressure reactions convert variances in the patient s pulse into electromagnetic waves
通過現代中醫發展起來的新技術，把病人脈搏的反應轉化成電磁波。 -
Flier - plate with graded wave impedance, which can be regarded as a new type of functionally graded material ( fgm ) since its wave impedance changes gradually along the thickness direction and thus can be used to generate quasi - isentropic compression energy waves in targets or drive projectiles to hypervelocities, has come to show great potential for the application in dynamic high - pressure technique
波阻抗梯度飛片作為一類新型的功能梯度材料（ fgm ） ，因其波阻抗值沿厚度方向呈梯度變化而具有準等熵壓縮特性並能進一步用於超高速發射中，可以看作是fgm的優異特性在動高壓物理領域中的應用新拓展。 -
Digital audio sound waves generate air pressure oscillations that stimulate the human auditory system
數字音頻聲波產生氣壓振動刺激人的聽覺系統。 -
Under confused sea condition, the structures may subject to very strong w ave impulsive 1oad due to slamming by the wave with significant crest when waves propagate underneath the structure and surge up to its subface. previous studies indicate that impact pressures are characterized by an initial peak pressure of considerable magnitude but of short duration occurs, followed by a slowly - varying uplift pressure of less magnitude but of considerable duration, and which typically is first positive, then decreases to zero and becomes negative, in hostile sea state, the peak pressures may cause the damage of the horizontal members of the structures or make the whole superstructure collapsed
若這些海上建築物的上部結構底高程較低，在惡劣海況下當大波浪在其面板下面通過並與之接觸時，面板下面除了作用有強度變化較緩慢的波壓力外，在波峰剛接觸到面板時尚存在著歷時很短但強度極大的沖擊壓力，這種極強沖擊荷載會引起建築物的整個上部結構失穩或造成局部破壞。 -
From the past research work, it has been known that the main mechanisms of spectral lines broadening in the atmospheres of stars are doppler broadening, spectral lines broadening by rotation and expending, pressure broadening ( stark broadening ), natural broadening, spectral lines broadening in magnetic field, sonic waves and alfv e n waves broadening, etc. but it is not enough to explain the recent observation phenomena by above theories of spectral lines broadening
以往的研究已經判明，在恆星大氣內譜線致寬的主要機制是多普勒致寬、自轉源或膨脹源引起的致寬、壓力致寬（斯塔克致寬） 、自然致寬、磁場引起的加寬、聲波及阿爾文波致寬等。然而，已有的譜線致寬理論不足以解釋最近的一些觀測現象，仍存在觀測值與理論值之間的差異。 -
The pressure of projectiles without lateral jets waves periodically and the magnus force coefficient is in excellent agreement with the experiment data
光彈體彈丸表面壓力表現為周期性波動，從計算中得到的馬格努斯力系數與實驗值十分吻合。 -
By fem, the numerical simulation was carried out according to such models, many important hemodynamic variables, such as the tempo - spatial velocity field at every cross section of the artery, the pressure distribution, the secondary flow and the wss ( wall shear stress ) at the specific areas were obtained, which will help understand the biomechanics of coronary atherosclerosis furtherly. many investigators studied the stenotic artery by means of 2 dimensional models, which can only simulate the planar pulsatile waves and got, to some extent, some general results of the blood flow without considering the secondary flow and the reality of physiological conditions
本文的著眼點和研究的目的在於，希望利用在血流動力學方面的研究優勢，用有限元方法對動脈粥樣硬化的血流動力學問題進行數值模擬，研究動脈粥樣硬化在生成和發展過程中的血流動力學、血管壁生理及生物力學性能的變化規律，以及這兩種變化規律之間的相互作用與動脈粥樣硬化的發生和發展的關系，通過大量算例的對比分析，以期在這方面作些基礎而有實際價值的工作。 -
Last, by the engine simulated calculation system, the best position of catalytic converter are confirmed in muffler and influence on engine performance of pressure waves are made out with exhaust control muffler
最後，藉助于發動機模擬計算系統的分析功能，確定催化轉化器在消聲器中的最佳布置及分析加裝排氣凈化消聲器后，壓力波對原機性能的影響。 -
To analyze the pressure waves in the exhaust pipes and the influence of the catalytic converter, new simulation software has been developed by the author on the base of mk14, which is a powerful tool in developing exhaust system with catalytic converter. its principle and the method to use are explained. the numeral models for engine simulation are simplified in the paper
為分析摩托車排氣壓力波的構成與變化、也為分析催化轉化器在排氣系統中對整體設計的影響，借鑒目前常用的幾種模擬計算軟體，結合特徵線理論，在mk14程序的基礎上開發了以進、排氣系統為主的發動機模擬計算系統（ escs ） ，該程序是加快設計周期的有力工具。
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