空化

There are few research reports about cavitation of the annular type jet pump.

但是关于环形射流泵的空化和空蚀问题的研究报告非常少。

Applied synthetically many new technique in domestic and overseas ,such as drilling, physical prospecting and field test etc, to evaluate scientifically the condition of goaf,the engineering characteristic of the coving peak rocks,the hollowed degree that piled up object collapsed in roof,and the stability of the goaf.

综合运用钻探、物探和现场测试等国内外多项新技术，对采空区赋存条件、覆岩层的工程性质、冒落堆积体空化程度和采空区稳定性进行科学评价；2。

The results indicated that the passive films showed a distribution of multi-layer structure and properties of p-type semiconducting in the conditions of quiescence.

结果表明，静态条件下， 0Cr13Ni5Mo和1Cr18Ni9Ti不锈钢均发生了钝化，钝化膜呈多层结构分布；空化条件下，钝化膜的稳定性降低，半导特性发生反转。

The growth of bubble cloud experiences swelling and compressing, reinflating and recompressing, collapsing and falling in the cavitation water jets or abrasive water jets with bubble.

在纯水空化射流与低浓度的磨料射流中，空泡云的发育过程经历了空泡云的膨胀、压缩、再膨胀、压缩、溃灭的几个过程。

For the aqueous luminol solution, three absorption bands with maximum. adsorption wavelength λ max 220.7、294 4 and 351.5nm respectively have been detected, with the exception of a little hyperchromic effect, the absorption spectrum contour of the solution cavitated by an ultrasound with a frequency of 1.45 MHz has been certificated to be unchanged.

luminol水溶液的吸收光谱有3个吸收带，它们的最大吸收波长分别是220.7nm、294.4nm和351.4nm，超声空化作用后主要呈弱增色效应，但其吸收光谱的基本形状无明显变化。luminol-NaOH水溶液经超声空化作用后也有较弱的增色效应和减色效应，但不论是否经历超声空化作用，其吸收光谱都与luminol水溶液的吸收光谱相似。

In this paper, the acoustic characteristic of bubbles and the interaction with tissue are studied by the experiments of sonoluminescence, the simulations and comparison of dynamics characteristic of gas bubbles and shell encapsulated bubbles, and the interaction between bubbles and tissue using single-frequency mode and dual-frequency mode ultrasound.

本文从空化气泡的声致发光实验、理论求解和比较带球壳微泡和空化气泡的动力学特性，和微泡在单双频超声换能器下的与生物组织的作用效果出发，研究微泡的超声特性以及微泡对生物组织的作用效果。

Theoretical analysis of cavitation phenomena around two-dimensional hydrofoils is conducted firstly and cavitation zone profile around NACA 4412 hydrofoil is iteratively solved.

本文首先对二维翼型周围的空化现象进行了理论分析，并迭代求解了NACA4412翼型周围空化区形态。

Some defects in similarity-law of cavitation model test in vacuum tank were pointed out,and it is necessary to standardize the zero-tensile-strength of liquid for cavitation inception tests effectively.

指出了在压箱空化试验中使用的相似律存在的缺陷。为了有效研究初生空化比尺效应，规范液体的抗拉强度为零是必要的。

Some different viewpoints on scale effects of cavitation inception testing in a normal water tunnel or in vacuum tank were discussed respectively.

讨论了在常规循环水洞或在减压箱中进行模型空化试验时，关于初生空化比尺效应的不同观点。

Furthermore, the research shows that the cavitator diameter has an important effect on the fineness ratio of the ventilated supercavity, which is not the same as the natural supercavity.

此外，研究表明空化器直径对通气超空泡的细长比的影响较大，这与对自然超空泡形态的影响不相同。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。