长期以来，生物学家一直在争论鸟类的产蛋在生物学上是否具有很高的成本，有的理论认为产蛋对能量或营养的要求很高。
Biologists have long debated about whether egg production in birds is biologically highly costly, some theorizing that egg production is energetically or nutritionally demanding.
内驱力减退说是基于生物学和心理学的驱动力理论而产长的。
Drive Reduction Theory is based all around biological and psychological drives.
借鉴西方新制度经济学的理论工具，回顾和分析了国外高等职业教育的产学结合机制。
Taking advantage of theoretical tools of the western new institutional economics , this paper reviews and analyses cooperative education mechanism of foreign higher vocational education.
在生物膜滴滤塔内含有生化反应的多相混合模型的基础上，结合代谢产热理论，首次建立了生物膜滴滤塔代谢产热模型。
The metabolized heat model in trickling biofilter has been established first combined with a multiphase mixture model in trickling biofilter with biochemical reaction and theory of metabolism.
探讨了先进计划与排产的含义和理论基础，探讨了在铝箔企业开发先进计划与排产系统的必要性。
The meanings and theoretical base of advanced planning & scheduling(APS) and the necessity of developing advanced planning & scheduling system in aluminum foil enterprise are discussed in the article.
在理论部分，对高新技术产业增长极的相关理论进行了系统地阐述，论述了高新技术产增长极形成的条件、机理，并对其作用进行了评价。
In the theory section, the thesis explains systematically the relative theories of high-tech industry growth poles and discussing its reasons of being and machinery, then values its effect.
通过运用灰色理论预测高含水井层系的含水变化情况，并进行去堵求产，取得了较好的效果。
Grey theory is used to predict variation of water content in the plugged intervals in Wells with high water cut, and calculate production through unplugging.
本文就教育与生产劳动相结合和产学合作教育的认识以及两者间的联系和区别，从理论上进行了一些探讨。
This paper theoretically discusses the recognition of "Education cooperating with productive labour and Cooperative education", their connections and difference.
然后根据熵产率，分析体系中的能量耗散和此时的唯象理论。
Then the energy loss and phenomenological theory are analyzed based on the entropy production.
研究结果为探索调节无烟烟花药剂的产气速率的技术途径，提供了理论依据和试验基础。
Such results have provided theoretical and experimental basis as well as technical support for modulating gas-producing rate of smokeless firework powders.
基于微生物处理废气的代谢产热理论，首次建立了生物膜滴滤塔代谢产热数学模型。
Based on the metabolism and heat transfer theories, a new metabolized heat transport model is developed.
直接发酵菊芋汁和菊芋粉获得更高的乙醇产率，理论转化率分别达到84.02%和86.09%。
Higher theoretical conversion rates of 84.02% and 86.09% were obtained when Jerusalem artichoke juice and flour were directly used in fermentation, respectively.
理论上的排产和实际车间操作还存在着差异，因此就实际中所遇到的问题提出了一些解决的办法。
The theoretic scheduling has some differences in the factual workshop operation, so this paper displays some methods to solve the problems in factual manufacture course.
吡啶既可做溶剂又可中和氯化氢，还可与酰氯形成络和物而增强酰化能力，理论产率很高，但后处理困难，实际产率反而很低。
Pyridine can improve the ability of acylation when it complex with acyl chloride. The theory yield is high but aftertreatment is difficult and real yield is very low.
通过比较搅拌和超声波下得到的产品，从理论上对影响晶体粒度及结晶产率的因素进行了分析。
By comparing the crystals insonated with that stirred, the factors of influencing crystal size distribution and crystal yield were analyzed in theory.
本文在介绍了侵蚀产沙的尺度特征后，对侵蚀产沙尺度转换的类型和理论方法进行了总结，最后还强调了尺度转换中应注意的问题。
This paper introduces soil erosion and sediment yield scale features, scale transfer styles and theory methods, and the necessity to pay attention to the problems of scale transfer.
数值计算和理论分析的结果表明，根据最小传递势容耗散原理得到的结果优于最小熵产原理得到的结果。
The numerical and analytic results show that the heat transfer rate obtained by potential capacity dissipation minimization is better than that by entropy generation minimization.
上述结果为改善甜菜施肥，提高其产、质量提供了一定理论基础。
The result could be theoretical fundament for optimizing fertilization and improving of yield and quality of beet sugar.
目的研究城市垃圾填埋气体成分及产气规律。方法通过深圳市玉龙坑垃圾填埋场现场抽气试验及理论计算。
Study on the generation law of gases produced from municipal solid waste landfill site and their components have been conduct in Shenzhen city.
根据流体渗流理论，利用原油产能指示参数预测模型可以对产层进行原油产能预测。
According to the theory of fluid seepage flow, oil-bearing productivity was predicted using the productivity index per meter.
就该理论在石油开发领域注水引致的套管损坏及产层出砂问题的具体应用进行了简单的讨论。
Two practical problems in the petroleum exploitation about casing collapse and sand production are taken as examples to make some explication.
这里耦合的含义是指，把水文学中的产汇流概念和理论用于陆面模式中以改善以往陆面模式对水文过程描述的不足。
The coupling here means that the conception and philosophy of runoff generation and routing scheme in hydrology are introduced to land surface model.
同时提出了参比氧化法的理论模型，并根据该模型推导出煤低温氧化产热速率的计算方法。
A model of comparative-oxidation method is built to calculate heat generation rates of low-temperature oxidation of coal.
理论上分析了现场部分油水井酸化后，油井产液量下降、注水井注水量下降的原因。提出了防止酸化失效的措施，并列举了实例。
Theoretical analysis is made on the cause of the decline of fluid production and water injection amount after acid treatment prohibition, and examples are given.
高剂量绞股蓝皂甙降低了微生物发酵的理论与实际产气量，并呈显著的线性和二次方效应，产气速率与皂甙剂量之间有着显著的线性效应。
The theoretical and actual gas production was reduced at high saponin levels, and there were significant linear and quadratic patterns between gas production and gypenoside levels.
本文研究结果为广西产飞龙掌血鉴别提供理论依据。
The results of this study provide a theoretical basis for the Guangxi Toddalia identification.
目的：通过测定贵州产淫羊藿药材不同药用部位中淫羊藿苷的含量，为合理开发利用贵州淫羊藿资源提供理论依据。
Objective:To determine icariin contents in different plant parts of Epimedium plants in Guizhou, and provide a basis for reasonable development of the medicinal material resources.
流域产汇流模型和遥感技术相结合应用到具体工程实践所产生的新的理论技术和研究方向作了分析。
New theory, methods and current trends produced by runoff yield and runoff in small watersheds in combination with remote sensing to apply to practical engineering are introduced.
流域产汇流模型和遥感技术相结合应用到具体工程实践所产生的新的理论技术和研究方向作了分析。
New theory, methods and current trends produced by runoff yield and runoff in small watersheds in combination with remote sensing to apply to practical engineering are introduced.
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