相关关系

The influence of the stiffness of the gravity abutment on the stress of the arch dam is also analyzed.

接着分析了抗剪强度参数的选择及渗透压力对可靠指标的影响，并讨论了随机变量的分布类型、截尾情况以及相关关系对可靠指标的影响。

The prevalence and abundance of the acanthocephalan exhibited very similar and significantly seasonal change patterns in O. uncirostris and H. bleekeri bleekeri. The infection levels were higher in autumn and winter, but lower in spring and summer. However, the infection levels in Z. platypus kept stable all the year round. There were significant differences among the overall abundance of the acanthocephalan in the three host populations. Nevertheless, the frequency distribution of the parasite in the three kinds of fish was over-dispersed in most seasons and in total as measured by the variance to mean ratio. The variance to mean ratio was not found related to the infection levels.

在感染率和感染丰度方面，寄生于马口鱼和油的木村小棘吻虫呈现出显著的季节变化：秋冬季节感染率和感染丰度都比较高，而春夏季节则比较低；与此不同的是，寄生于宽鳍鱲中的木村小棘吻虫则全年都维持着较稳定的感染水平；木村小棘吻虫种群在三种宿主体内的总体感染丰度差异显著，但都呈聚集分布，三者的方均比与感染率和感染丰度之间无显著相关关系。

Pneumonia group presented highly sensitive trend to dust acarid,and positive cases increased with the growth in age and had a positive correlativity.

哮喘组对尘螨呈高敏感趋势，而且阳性率随年龄增长而增长，呈正相关关系。

According the survey,the primary inhaled allergen for the asthma children is dust acarid,and the positive cases increase with the growth in age and present a positive correlativity.

本组受检哮喘儿童吸入性过敏原中，主要过敏原为尘螨，而且阳性率及过敏反应程度随年龄的增长而增长，呈正相关关系。

Based on indoor measurement of rock acoustic velocity,drillability, rigidity ,uniaxial compressive strength,the relationship between acoustic velocity and fragmentation parameters of rocks and that between the surface acoustic velocity and the underground mine logging acoustic velocity were explored by regression analysis.

在室内测定岩石声波速度、可钻性、硬度、单轴抗压强度试验的基础上，利用回归分析方法，探索声波速度与岩石机械破碎性能参数之间、地面声波速度与井下测井声波速度之间相关关系，建立了利用测井声波速度预测地层岩石机械破碎性能参数的数学模型，介绍了预测剖面及资料验证结果，并将这一方法用于计算PDC钻头可钻性以及中国南方海相碳酸盐岩地层的岩石力学参数。

The correlative analysis of theotoliths' thermoluminescence result show that half width and peak point is related to the subgroup element、Lanthanide and actinium elements highly.

耳石热释光曲线与耳石元素和水体元素的相关性分析表明耳石热释光半高宽和峰位主要与耳石中的副族元素、镧系及锕系元素之间呈显著的相关关系。

To probe the relation of proliferating cell nuclear antigen and wheat germ agglutinin receptors expressed in human bladder transitional cell carcinoma.

探讨增殖细胞核抗原(proliferating cell nuclear antigen，PCNA)和麦胚凝集素(wheat germ agglutinin，WGA)在膀胱移行细胞癌中表达的相关关系。

As for the second conclusion, the authors explanation can be divided into two parts: on the one hand, the more self-identity that investor put on for the value of state-owned assets ,the lower risk agio the investor ask for, so the underpricing of IPO is low.

对于国有股比例与IPO抑价程度的负相关关系的解释是：一方面国有股比例所内含的政府信用的隐性担保功能降低了投资者的风险，其所要求的风险贴水也就相应降低，因此IPO抑价程度也低。

Objective:To study the changes of ambulatory blood pressure in patients of renal hypertension.

目的：通过应用动态血压监测仪来观察肾性高血压的动态血压变化，以及血压的变化与肾功能变化之间的相关关系。

The results showed that 206Pb/207Pb, 208Pb/204Pb and 206Pb/204Pb of soil samples were all remarkably correlated linearly with reciprocals of Pb concentration, and 206Pb/204Pb had a significant positive linear correlation with 208Pb/204Pb, which was consistent with binary mixing model.

结果表明，土壤样品206Pb/207Pb、 208Pb/204Pb和206Pb/204Pb与Pb浓度的倒数，206Pb/204Pb与208Pb/204Pb都呈显著的线性正相关关系，这些关系符合二元混合模型，由此可以推断土壤铅主要源于人为排放和土壤母质。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。