引起因素

Results the positive rate of hpv6.11,hpv16.18,hpv6.11/16.18 were 52（25.4%）、45（22.0%）、26（12.7%） respectivelys. logistic regression analysis and multiple factor variance analysis showed clearing degree and h2o2 concentration promoted hpv6.11/16.18 infection and speeded infection process. but pyocyte, mycetes, neuraminidase had no dependability with hpv6.11/16.18 infection.

结果 205例疑似尖锐湿疣感染患者检出hpv6.11、hpv16.18、hpv6.11/16.18阳性例数为52、45、26.logistic回归和多因素方差分析结果表明，清洁度和h2o2浓度与hpv6.11/16.18感染和加速感染进程密切相关，与脓细胞、霉菌、唾液酸苷酶并无相关性。ph值、白细胞、霉菌、滴虫、线索细胞、白细胞酯酶与hpv6.11/16.18感染虽无相关性，但在引起hpv6.11/16.18感染方面起到重要作用。

In neritic area, the variable period reverberation caused by seabed terrain fluctuation is the main disturbance factor to the seismic data quality. The existing methods of suppressing seabed reverberation had some deficiencies more or less and so they cannot completely eliminate the reverberation interference.

在滩浅海地区，由海底地形起伏引起的变周期鸣震是影响资料品质的主要干扰因素，已有的压制海底鸣震的方法，或多或少存在着一些不足，不能达到完全消除资料上鸣震干扰的目的。

The authors note that the increase in the diameter stenosis in patients on antiplatelet therapy was unexpected, and could be "related to asodilatation caused by dipyridamole or neurohumoral effects on coronary arteries after MI."

作者指出，抗血小板治疗患者直径狭窄增加是意料之外的，可能&与潘生丁引起的血管扩张或心肌梗死后神经体液因素对冠状动脉的影响有关。&

Human neurotropic JC virus is able to infect human brain glial cells. The causative agent of the fatal human demyelinating disease progressive multifocal leukoencephalopathy, that cytolyses and destroys oligodendrocytes, the myelin-producing cells of the central nervous system. Also results from several experiments have indicated the JCV is able to induce neoplasms.

人类嗜神经性JC病毒可感染人类脑细胞是引起进行性多病灶脑白质病的因素，为一种致命性的脱髓鞘疾病，其导致神经系统产髓质细胞的溶解破坏，但JCV也在许多动物实验上显示其有促成肿瘤的潜在性。

Aiming at a class of complex electromechanical systems, such as 4-high or multi-high cold mills and continual mills, we firstly construct mathematical models of every subsystems by means of structural principle modeling method; nextly, get the overall mathematical model of electromechanical drive system by joining together these subsystems'models according to coupling variables and parameters; we finally simplify the overall model according to time-scale principle which can retain main eigenvalues and significant state variables, and obtain a practical mathematical model of complex electromechanical system. By simulating the CM04 temper mill's model constructed by above-mentioned method, we test and verify that the modeling method is effective and practical. The study analyzes and researches the electromechanical coupling facts and acting laws existing in complex electromechanical system.

提出了系统的总体测试方案，设计了高保真度的信号隔离和缓冲器，解决了从大功率、大电流复杂机电系统主回路中提取真实谐波分量、而又能不影响系统正常运行的难题；发现了谐波电流对平整机工作状态的影响规律；确认谐波电流是可能引起平整机工况奇异、产生机电耦合振动、导致带材产品表面出现明暗振纹的一个因素；提出了一种多相整流电路谐波电流的分析计算方法，用该方法对平整机三相桥式整流供电电路的谐波分量进行了理论分析和计算，计算结果与实测结果能得到相互验证，说明该方法是可行的，实测结果是可靠的。

As it known, mistakes in spatiotemporal expression of critical genes result in congenital cardiovascular diseases. Furthermore, studies on high risk population of cardiovascular disease have also suggested the relationship between noncongenital cardiovascular diseases and genetic factors.

在心血管系统疾病的研究中已发现，有些是由于某些基因在时空上的表达紊乱所引起，而对部分心血管系统病症高发人群的研究也证明部分后天形成的心脏病与遗传因素有关。

In today's world, educational fields pay more attention to the importance of teaching students how to study. Nonintellectual factors, such as academic motivation and learning interest, have a great effect on the study, which is generally concerned by the academic world day by day.

在教育领域越来越重视如何教学生学会学习的今天，诸如学习动机、学习兴趣等非智力因素对学生学习的影响，日益引起教育界的普遍关注。

It is usually a nonprogressive disease and can be caused by viral infections, drugs, vitamin A deficiency, or genetics.

该疾病通常是非渐进性的，可由病毒感染、药物、维生素A缺乏或遗传因素引起。

The external circumstance such as temperature and stress can induce nonreciprocal phase noise, which restricts the developing of high precision gyro.

光纤环所处的环境因素，如温度、应力引起的非互易性相位噪声，制约了光纤陀螺向高精度、实用化的发展。

It is showed that a quantitative analysis on those geophysical factors causing the seasonal vertical movement of the crust could be very helpful to explain what is obtained in GPS monitoring, such as the atmospheric pressure, the mass load of snow cover and soil humidity, the nontidal oceanic mass load, rock's thermal expansion and shrink and so on. Also we do some ualitative analysis on the systematic errors between them.

研究表明，通过对大气压、积雪和土壤湿度质量负载、非潮汐海洋质量负载、以及基岩的热胀冷缩等地球物理机制因素引起地壳垂向季节性变化的定量分析，可以较好地解释GPS的监测结果，对两者间存在的一些系统偏差做了定性分析。

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。