不稳定性

A high frequency secondary instability mode is detected, which rides on the primary instability wave in time domain and appears at the inflectional point of mean streamwise velocity profile.

结果表明，高频二次不稳定性在时域上表现为骑在基频波的特定的相位区域。

Based on the principle of variation of earth pressures on the culverts under different conditions, including topography, span of culvert, density of fill and the type of structure, and the property of arching action above the culvert, a nonlinear earth pressure theory for culverts beneath high fill is presented, the theory suggests the earth pressure on the culverts beneath high fill can be calculated with the formula σ=ξγH〓 as the fill up to higher height.

把这种方法与其它地下洞室的土压力计算理论进行的对比分析结果表明，非线性土压力理论考虑了填土达到一定高度时在涵洞上方产生的拱效应以及土拱的不稳定性特点，其计算的土压力明显低于不考虑拱效应的低填方涵洞土压力计算值，但高于具有稳定土拱效应的地下洞室土压力理论得到的土压力。

Current financial superving model in China is administrative-financial one,the structure of that has the characteristic of Quadrilateral,and is not very stable.

我国现行的财政监督模式，是一种行政型财政监督模式。它在结构上呈现四边形的特点，具有较强的不稳定性。

Based on the proportion estimate and the mean estimate in sampling technology,the authors of this paper put forward the method of ratio estimator in sampling technology and makes a detailed analysis of method.

在抽样技术比例估计与均值估计的基础上，提出了抽样技术的比率估计法，并对其作了详细的分析，同时，通过具体问题的讨论，说明了比率估计法所具有的优越性；针对各个样本比值有比较大的差别时所产生的不稳定性，运用聚类分析的方法提出了具体的比率估计法的改进公式，减少了噪声数据的影响，得到了较高的准确度。

To solve the problem of instability when the ratio of samples differ greatly,an improved formula for the method of ratio estimator is put forward by means of clustering,which can reduce the ef.

在抽样技术比例估计与均值估计的基础上，提出了抽样技术的比率估计法，并对其作了详细的分析，同时，通过具体问题的讨论，说明了比率估计法所具有的优越性；针对各个样本比值有比较大的差别时所产生的不稳定性，运用聚类分析的方法提出了具体的比率估计法的改进公式，减少了噪声数据的影响，得到了较高的准确度

(1)The levels of MCP-1 and VEGF'levels was significant increased in CHD patients,Compared with controls, It was implicated that they might take part in the actions of informing atherosderotic plaques;(2)The serum level of MCP-1 and VEGF were elavated step by stey among the group of controls、SAP、UAP、AMI, It was thought they might develop the matter on the stability of atherosderotic plaques;(3)The serum level of MCP-1 and VEGF were positive correlated with 7-TIMI risk score, It prompt that MCP-1 and VEGF was the reactiveness markers of coronary artery process ,and developed the risk to major acute cardiac events.

(1)血清MCP-1、VEGF水平在冠心病患者中显著升高，提示MCP-1、VEGF可能在促进冠状动脉粥样硬化斑块形成的过程中起重要作用；(2)血清MCP-1、VEGF水平在对照组、各冠心病亚组(SAP、UAP、AMI组)之间逐级升高，提示MCP-1、VEGF可能增加了冠状动脉粥样硬化斑块的不稳定性；(3)联合检测MCP-1、VEGF的灵敏度\特异度上升，证明临床上联合检测二者血清指标意义大；并且血清MCP-1、VEGF水平和7-TIMI积分呈正相关性，7-TIMI积分高的患者血清MCP-1、VEGF水平也高，说明它们能作为冠脉病变的活动性标志物，可能成为评价主要心血管恶性事件的危险性的相关指标。

Because source data is unsteadiness, the changes of data must be spread to materialized view and make it be consistency the changes of materialized view and source data. Otherwise the freshness of data in materialized view will be fall down and the authenticity and consistency of OLAP will be affected. For the maintenance problem of materialized view, an algorithm is presented and it can make the cost of materialized view recomputation be minimized.

由于源数据的不稳定性，其数据的变化必须及时传播到实体化视图中，以保持实体化视图与源数据的变化一致性，否则会降低实体化视图中数据的新鲜度，并影响联机分析处理查询结果的真实性和有效性，针对视图的维护问题，提出了实体化视图的一种维护算法，它将使视图重计算代价最小化。

If you do not establish adequate outlets for this energy, it could manifest itself as restlessness and instability.

如果你们不能为这些能量找到适合的出口的话，它们将带来不安和不稳定性。

Foreign capital facilitate the saltant development of regional economy,however,the low efficiency and instability of foreign enterprises lead to the limitation and instability of independent innovation and upgrade of industrial structure in regions where foreign capital is principal part,and the potential of sustainable development in these regions is uncertain.

但由于外资企业投资上的低效率性和游移性，致使以外资为主体经济成分的地区自主创新和产业结构升级具有局限性、不稳定性，其可持续发展潜力与能力也具有不确定性。

It is found that the sandbar moves onshore and offshore alternately and that this unstable motion can be seen as a type of the instability of the coastal sea bed profile under the action of water waves.

研究沙坝产生的机理和不稳定性，以及不同波浪下所产生的海岸平衡剖面形状。

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