查询词典 bubble formation

The effects of the decarburization of the base metal on bubble formation in enamel coating, the relationship between hardness and firing temperature and time, the effect of crystal nucleus addition and influence of adding adhesive agent .

研究了搪瓷层的硬度与烧结时间和温度的关系，并分析了添加晶核形成剂对搪瓷层硬度的影响，以及搪瓷原料组成中的密着剂对搪瓷层和金属基板密着性能的影响。

If not fault energy, the decomposition of gas bubble formation in the oil Lane by convection and diffusion constant dissolved in oil.

如果故障能量不大，分解出的气体形成的气泡在油里经对流，扩散不断的溶解在油中。

With the investigation of the domestic and foreign literature systematically, the bases on the domestic and foreign present research and the comprehensive utilizations of the various knowledge of fluid mechanics in porous medium, reservoir engineering, mathematical physics, perforation completion, numerical simulation and so on, this article takes numerical simulation of gas reservoir of water solubility as the research aim which has completed following research works and obtained the corresponding research results: it analyzes the nature of the Water-soluble gas and formation water as well as the influent factors of the solubility through the study of massive materials; It establishes mathematical models three-dimension, the dual medium, the gas-water phase through the way of finite difference in the migration of water-soluble gas, which describes the entire process of release, migration and production in formation, where it considered the problems of variable bubble point; According to the numerical models of gas reservoir of water solubility it provides solution procedure that based on black oil model; It discovers that there will obtain the good effects in the lowly speed of development through simulation; the reinjection of formation water may largely enhance the produce degree of water-soluble gas when we consider reinjection in simulator; It considered the influence of perforated completion on development so as to increase the simulator"s versatility, It discovers that the simulator may reflect the conditions of development when we exanimate he simulator"s reliability with the empirical datum.

本文以水溶性气藏数值模拟研究为研究目标，在系统调研国内外文献、深入分析国内外研究现状的基础上，综合利用渗流力学、油气藏工程、数学物理方法、射孔完井以及数值模拟理论等多方面的知识，完成了以下研究工作并取得相应的研究成果；①通过对大量的资料调研，分析了水溶气、地层水性质、储层地质性质以及影响气体在水中溶解度的因素。②考虑到由于高压产生的大量水力裂缝，采用有限差分方法建立水溶气运移的三维、双重介质、气-水两相全隐式数学模型，该模型描述了水溶气在地层中的释放、运移和采出的整个过程。③在原有黑油模型的基础上，根据水溶性气藏数值模型编制了该数值模型的求解程序，该程序可以求解单重、双重介质两种情况。④通过模拟不同开采速度对水溶气开发效果的影响，发现开采速度较慢的时候可以取得较好的开采效果。⑤在模拟器中考虑了注水对水溶性气藏开发的影响，地层水回注可以大幅度提高水溶气的采出程度。⑥为增加模拟器的通用性，在模拟器中考虑了射孔完井方式对开采的影响。⑦检验模拟器计算的可靠性，发现在使用实验数据对水溶性气藏进行模拟时，模拟器可以很好的反映气藏开发的状态。

When the internal pressure of liquid, which dropped below the liquid at that temperature the saturation vapor pressure at the local area or the formation of steam bubble point; and stress at elevated places around the bubble suddenly breaking pressure, flow due to inertia to high speed to the center of bubble extrusion, hydraulic shock caused by the equipment.

当液体内部压力下降，低于液体在该温度下的饱和蒸汽压时，在局部区域形成汽泡或汽穴；而在压力升高的地方汽泡突然被四周的压力压破，液流因惯性以极高的速度向汽泡的中心挤压，对设备造成水力冲击。

This paper mainly discussed about the research on microbubbles generation by metal microporous tube,it is a new method of bubble formation.

本文主要研究了用金属微孔管制造微气泡，这是一种比较新颖的气泡制造方法。

The effects of rheological characteristics, orifice diameter, chamber volume and gas flowrate on bubble formation were discussed.

讨论了流体流变性质、喷嘴直径、气室体积和气体流率对气泡生成的影响。

For single-electrode, its interface region is slowly expanding out, the residual gas washer will be evicted Bubble formation is not easy, the interface quality is very good, but the bonding speed has been rather slow.

对於单点式电极，其接合区域是慢慢扩张出去，因此接合面的残存气体也会被驱赶出去，不易形成气泡，接合品质相当好，但接合速度相当缓慢。

T his restricts the transition of reaction gas and causes bubble formation at the interface.

氧化产物与基体形成的致密层减缓了纤维的进一步氧化，并阻碍氧化气体的排除，在界面形成大量气泡。

Assuming fluid is and viscid and slightly compressible, bubble collapse near rigid boundary and free surface is simulated, displaying characteristics such as formation, penetration and impact of reentrant jet as well as vortex ring and bubble rebound.

采用粘性、微可压流体模型，数值模拟了空泡在刚性边界和自由面附近溃灭及空泡溃灭后流动的发展，显示了空泡溃灭过程中的凹陷射流形成、空泡贯穿、射流冲击、涡环的形成和空泡回弹等流动特征，提出空泡回弹的另一种机制是凹陷射流冲击形成的旋涡。

Result Incidence of altitude decompression sickness under rest condition was closely related to age,time of oxygen prebreathing,gas bubble formation rates in the venous blood flow returned to heart and some other physiological indexes.

结果 安静状态下，高空减压病的发生与年龄、预吸氧时间及某些生理指标关系密切；在同样吸氧、减压条件下，年龄较大者(30～36岁)比年轻者(19～20岁)体脂高、血胆固醇高；实验前、后尿去甲肾上腺素增量大的减压病的发生率显著增高。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。