查询词典 cavitation

In chapter 4, the experimentation of incipient cavitation in a transparent jet pump has been done and the data is computed.

第四章对透明射流泵的初生空化作了试验观测和数据计算研究。

The CT features of peripheral lung cancer with diameter more than 3 cm, deep lobulation, frank cavitation, pleural indentation or mediastinal lymph node metastasis indicate higher degree of malignancy and proliferative activity of tumor cells.

周围型肺癌CT征象中，瘤体直径＞3cm，或出现深分叶征、空洞、胸膜凹陷征、纵隔淋巴结转移者，具有相对更高的恶性程度，肿瘤细胞的增殖更为活跃。

Results The expression of p53 protein and PCNA was correlated with tumor size, deep lobulation, frank cavitation, pleural indentation and mediastinal lymph node metastasis, but not with spiculation.

结果 p53蛋白、PCNA表达与瘤体大小、深分叶征、空洞、胸膜凹陷征、纵隔淋巴结转移有关，与毛刺征无关。

Based on the theory of cavitating flows,the definition of supercavitation ,the main idea of reducing drag by ventilated cavitation and the principle of supercavitation torpedo are introduced.

文章从空泡流理论出发，介绍了超空泡的定义、超空泡减阻的基本思想和超空泡鱼雷的工作原理，并分析了超空泡技术研究中的关键问题和未来发展趋势

The fluid film bearing-flexible rotor nonlinear system with squeeze film damper is modeled practically using the finite element method and the Hamilton principle.(3) The film forces produced by fluid film bearing and squeeze film damper are determined by finite element method at any moment, and the Jacobian matrix is also determined.(4) A method for analyzing the dynamics of a large system with local nonlinearities is presented. The stability and bifurcation of the equilibrium position and the unbalance responce of a fluid film bearing-flexible rotor system with squeeze film damper are investigated based on the assumption of an incompressible lubricant together with the long bearing approximation for fluid film bearing, short bearing approximation for squeeze film damper and the"π"film cavitation model.

主要研究内容包括下面几个方面：（1）对挤压油膜阻尼器-滑动轴承-转子非线性动力系统中的非线性现象进行了机理方面的研究；（2）应用有限元方法及Hamilton原理对复杂的挤压油膜阻尼器-滑动轴承-转子非线性动力系统进行了建模分析；（3）对滑动轴承及挤压油膜阻尼器中任一时刻的油膜力及相应的Ja-cobi矩阵的确定进行了分析；（4）对一类具有局部非线性的多自由度动力系统，提出了一种可以有效地分析其动力特性的方法；（5）采用实验与理论分析相结合的方法，对挤压油膜阻尼器-滑动轴承-转子非线性动力系统的动力特性进行了分析。

The results suggested that 1.0% ethanol appeared to have beneficial effects on the cavitation of 8-cell embryos and morula.

然后又用含1%和3%乙醇的Whitten氏培养液分别对小鼠2细胞、4细胞、8细胞和桑椹期胚胎进行培养。

An investigation on cavitation erosion of nodular cast iron is presented in this paper.

针对球铁的汽蚀特性进行了研究，认为球铁中的石墨是球铁的汽蚀破坏源。

Besides closing velocity of occlude is an important index for cavitation potential of MHV.

空化机理分析表明，阻塞体关闭速度是衡量机械瓣空化趋势的重要参考指标。

It is proposed that flexible occluder material or structure for slowing down occlude is applicable to reduce cavitation potential of MHV.

由此提出阻塞体采用柔性材料或适当缓冲结构可以减小机械瓣的空化趋势。

Its main problem in projects is cavitation damage of ogee section, which can be frequently found in the end, downstream baseboard and downstream sidewall s of ogee section.

龙抬头式泄洪洞在中、高水头的水利水电工程中应用十分普遍，其突出的水力学问题是反弧段的空蚀破坏，反弧段空蚀破坏的部位常见于反弧末端、反弧段下游底板和反弧段下游侧墙。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷