决定因素

Based on the above rules of the coupling relation between eco-environment and geotectonics, the coupling relation between the en

通过对陕西生态环境脆弱度的评价以及有关的分析得出，构造决定的生态环境整体功能衰退是形成脆弱中心和造成区域生态环境问题的根本因素。

Stability of electrodeposition liquid, the physical and chemical resistance properties of the film depend on amine value, kinds of glycidic ester used, GA content and the amount of blocked polyisocyanate used.

结果表明，环氧基在固化过程中会参与交联反应，电泳液的稳定性、涂膜的物理性能和耐化学品性能由胺值、缩水甘油酯单体种类、丙烯酸缩水甘油酯含量和封闭型多异氰酸酯用量等因素决定。

Two characters have been found: Firstly, the harn ess of groundwater tended to become complex and diversified along with the prom otion of productive level and the extension of agricultural and pastral activi ties of human being; Secondly, the depth and...

即：(1)人类对地下水的利用随社会生产力水平的提高、农牧业活动范围的扩大而趋于复杂化和多类型化；(2)地下水农业利用的深度和广度与当时生产力水平密切相关，生产力水平的高低是决定黄土高原地区地下水农业利用程度与方式的主导因素。

The element of the fitness discretion that decides a person basically depends on a priori be being mixed hereditarily will win this two respects the day after tomorrow.

决定一个人的身体素质高低的因素主要在于先天遗传和后天获得这两方面。

The time lag of Chinese course is that there is a relative lag between the development of Chinese course and request of times. Such lag is decided by hominine factor, external environment and idiosyncrasy of Chinese course.

语文课程的时滞是指语文课程的发展相对于时代的需求而言是相对滞后的，这种滞后性是由于人为因素、客观环境以及语文课程自身特征共同决定的。

And a new study shows that genetics may be a factor: inherited traits, such as impulsivity, can make a person more or less willing to have sex at an earlier age.

另外最近的研究表明基因也许是一个决定&破处&早晚的因素：在遗传性状中，如是否易冲动，会影响到一个人是否会在较小的年龄时就发生性行为。

mitochondrial dnais the only inheritant substance except for the nuclear dna in a euˉkaryon cell,which is related to the oxidative phosphorylation of a cell.mitochondrial dna is the important target of carcinogens and is vulnerable because of its structure and function.the mutation of mtdna could reduce the nomal respitation and release large quantities of ros,whichincrease the danger of cancer happening.so,mtdna has been thought to be involved in carcinogenesis and recently more and more studies in this aspect have comeout.in this paˉper,we review the researches for relationship among mtdna mutation and tumors in digestion system,woman system,head and neck,urinary systemand blood system.

线粒体dna（mitochondrial dna，mt dna）是真核细胞中唯一存在的独立于核dna之外的遗传物质，与细胞的氧化磷酸化功能密切相关。mtdna自身的结构和功能特点决定了它是致癌物作用的重要靶点，易受致癌因素的损伤而发生突变。mtdna的突变可削弱正常的呼吸功能，释放高水平的活性氧，进而增加肿瘤发生的危险性，所以mtdna被认为与肿瘤发生有密切关系。近年来，这方面的研究越来越多，本文现就mtdna突变与消化系统肿瘤、妇科肿瘤、头颈部肿瘤、泌尿系统肿瘤等实体瘤以及血液系统恶性肿瘤之间的关系作一简单的综述。

The regioselectivity observed experimentally is predicted correctly by theoretical calculation and is determined kinetically.

计算结果不仅正确预测了实验所发现的完全的区城选择性，而且表明这种选择性由动力学因素所决定。

Detailed time-dependent evolutions of the morphology and phase were systematically studied and the formation of both CuO nanostructured arrays was shown to be due to oxidation→ growth → dehydration and oxidation → dehydration → growth processes, respectively. The kinetically controlled nucleation and growth determined the final morphology of the CuO nanostructures.

系统研究了产物的物相和形貌随反应时间的演变情况，结果表明两种氧化铜纳米结构阵列分别是通过氧化→生长→脱水和氧化→脱水→生长过程形成的，其中动力学因素控制的成核与生长过程决定了氧化铜纳米结构的最终形貌。

Numerical analysis shows that the effect of effective viscosity on the performance of micro journal bearings is significant and the reference Knudsen number is its crucial factor.

数值分析表明，稀薄条件下气体径向微轴承性能存在明显的有效黏度效应，而参考努森数是决定有效黏度效应的主要因素。

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。