液体在长输管道内不稳定流动问题可以采用各种数直解法并借助计算机来进行处理，如特征线法、隐式差分法等。
Numerical method for computer solution are used for fluid flow in long distance pipeline, such as characteristics method, implicit difference method and so on.
口服液体控释给药系统是一种新型药物传递系统，因其存在物理不稳定性，所以能上市的品种较少。
Oral liquid drug controlled release system (OLCRS) is a new drug delivery system. But only a few has been come into the market due to the physical instability.
采用非线性动力学方法对液体火箭发动机非线性高频燃烧不稳定工作过程进行了研究。
The nonlinear high frequency combustion instability process in the liquid rocket engine is simulated with the method of nonlinear dynamics.
背景：在术后同时伴有中度血流动力学不稳定或者液体超负荷的急性肾衰患者，透析方式的选择是非常困难的。
BACKGROUND: In postsurgical acute renal failure patients with moderate unstable hemodynamics or fluid overload, the choice of dialysis modality is difficult.
本文针对抑制液体火箭发动机不稳定燃烧的声学装置——赫姆·霍兹声腔和四分之一波长管声腔进行了研究。
Helmholtz resonators and quarter wave resonators are studied as the high frequency combustion instabilities suppression devices in liquid rocket engines.
液体从气泡表面排出，气泡很快变得不稳定。
Liquid drains from the upper surface of the bubble and it soon becomes unstable.
采用数值模拟的方法对液体火箭发动机燃烧室内湍流两相流动与燃烧过程进行了分析，同时研究了燃烧室内高频不稳定燃烧现象。
Turbulence two phase flow and combustion process in a liquid rocket engine combustor are analyzed with numerical method, and combustion instability is also studied.
本文用环形不稳定性计算模型计算、分析了FY -20液体火箭发动机的切向高频燃烧不稳定性。
This paper presents computation and analysis of tangential mode of high frequency combustion instability in FY-20 liquid propellant rocket engine by means of the annular instability model.
分析表明：突变现象是感应充电进入电晕充电的固有特性，电压降低，电流突然增大，产生突变，且不稳定的起始(着火)电压与电极的结构形式、尺寸、液体介电物理性质有关。
It is found that the instable start (ignition) voltage is related to the structure and the size of electrode as well as to the physical property of liquid electric inductivity.
建立了液体火箭发动机切向不稳定燃烧数值分析模型并进行了初步分析。
A numerical model was employed to analyze the tangential combustion instability in liquid rocket engine.
模型主要包括井筒流动模型、不稳定储层流动模型、液体界面移动模型和酸蚀蚓孔模型等。
The models was established of the following components: wellbore flow model, unstable reservoir flow model, the fluid interface movement model, acid etching wormhole model and etc.
模型主要包括井筒流动模型、不稳定储层流动模型、液体界面移动模型和酸蚀蚓孔模型等。
The models was established of the following components: wellbore flow model, unstable reservoir flow model, the fluid interface movement model, acid etching wormhole model and etc.
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