就生物燃料的性质而言，它还是会产生出碳质物，因为这种碳对地球上的生物是极有必要的。
By their very nature, biofuels cannot be carbon-free because carbon is essential to life on Earth.
我忽略了拥有“钢铁般意志”的必要性，我自己的意志力中很少或干脆没有这种特殊的金属性质。
I had overlooked the necessity of having an "iron will", my own powers of will having little or none of this peculiar metallic quality.
在为内容开发元数据标记时，务必要花时间了解信息上下文的性质。
Be sure to spend time understanding the nature of the information context when you're developing metadata tagging for content.
我的行动非常有必要，以此阻止在此开采的一个大煤矿，煤矿本来可能会根本性地改变这个地区的性质。
My action was necessary to stop a large coal mine that would have fundamentally changed the character of the area.
但是，若以研究来指导治疗，患者势必要面临研究成果的统计性质所固有的不确定性的风险。
But guiding treatment by research requires patients to expose themselves to the uncertainties inherent in the statistical nature of research results.
根据要诊断的网络问题的性质，有时候有必要了解失败的应用程序或命令是否有详细输出、跟踪或调试选项。
Depending on the nature of the network problem you're diagnosing, it's sometimes worth investigating whether the failing application or command has any kind of verbose, trace, or debug options.
Gmail是一种实验性质的网络电子邮件，创建它的目的在于可以让你永远没有必要删除邮件，并且总是可以找到你想找到的邮件。
Gmail: Gmail is an experiment in a new kind of webmail, built on the idea that you should never have to delete mail and you should always be able to find the message you want.
因此，有必要在分析功能概念的基础上对职务犯罪亚文化的功能依不同对象和性质进行分析。
Therefore, we will analyze the function of the official offence subculture according to different object and character on the basis of analyzing the notion of function.
本文最后一部分就考察了一般例外条款的性质、援引标准、必要性要求以及解释原则。
The last part of this article analyzed the feature of exception clauses, the standards of invocation, the requirements of "necessary" and the rules of interpretation.
拓展你自己成为必要，同时乐意去被测试，如此你可以安全地度量这份成就的性质和程度。
Stretching yourself becomes necessary as well as a willingness to be tested that you can safely measure the nature and extent of the achievement.
因此，有必要建立一个聚会场所性质的社交空间，刺激这两个街区经济增长，促进社会交往，以创造新的，更好的联系。
Therefore, it is necessary to create a meeting place with complementary programs that stimulates growth in both neighborhoods, to promote social interaction and create new and better links.
为防止药房托管在实践中的运作出现权利义务不清、责任主体不到位，研究托管合同的法律性质变得很有必要。
It is quite necessary to study the law nature of trust contracts so as to prevent indistinct relationship of right-duty and inexact liable subject in the process of drugstore trusteeship.
方法通过广义鞍点的性质并结合择一定理，得到有关充分条件和必要条件。
Methods Using the properties of saddle point and alternative theorem, the sufficient and necessary conditions of a super efficient point being a generalized saddle point are obtained.
此房地产认购书的法律性质如何，实有进行探讨的必要。
It is indeed necessary to probe into what legal nature this application for real estate subscription has.
文章给出了可能性空间中子集的包含、并、交、差、余关于可能性测度、必要性测度和信任性测度的一些性质。
This paper deals with some properties of possibility measure, necessity measure, credibility measure for containment, union, intersection, difference, complementation of sets in possibility space.
对于客体中的财物所有权，没有必要区分其所有制性质。
To the ownership of property in the object, we don't have to differentiate.
发动机传感器的测试是进行控制和诊断的基础，故有必要对传感器输出信号的性质、特征及电路加以阐述。
Testing of the engine sensor is base for control and diagnosis, thus, it is necessary to expound the characters, features and circuit of the sensor output signal.
自来水厂污泥性质的研究，对于合理设计污泥处理系统非常必要。
The characteristics of the sludge of a water treatment plant is essential for the designing of sludge treatment system.
利用超距空间的基本性质及拓扑空间紧致性的相关理论，给出超距空间为紧致空间的充分且必要条件，并讨论了一些相关性质。
A sufficient and necessary condition in terms of the compactness of super-distance space is given based on the property of super-distance space and the related theory of compactness.
为防止药房托管在实践中的运作出现权利义务不清、责任主体不到位等问题，研究托管合同的法律性质变得很有必要。
It is necessary to study the legal property of the trusteeship contract so as to prevent confusion between rights and obligation and inefficiency of the obligation entity.
尽管研究的一致性是必要的，但在研究项目的长期性质已定的情况下，财政保障是最重要的条件之一。
One of the most important requirements, given the intended long-term nature of the project, was financial security although consistent quality of research was also required.
仲裁的实践、仲裁的法律性质和仲裁的价值目标决定了仲裁中设立第三人制度的必要性、合理性和必然性。
The practice, the legal nature and the value orientation of arbitration have determined the necessity, rationality and inevitability of a third party participation rule in the arbitral activities.
基于北京城市性质定位为宜居城市这一背景，提出居住适宜性评价的必要性与紧迫性。
In the context of building Beijing into an amenity city, it points out the necessity and urgency of evaluating its urban residential suitability.
他们是完全不必要的，当你有自然知识的海量肝草药性质。
They are totally unnecessary when you have knowledge of the voluminous amounts of natural hepatic herbs in Nature.
第二章给出与本文密切相关的概念及其基本性质，为后面的章节提供必要的理论基础。
In the second chapter, we list some concepts and properties which are closely related to this thesis, which give a necessary preparation for the following chapters.
根据氢气的性质和目前的能源形势及环保政策，简述了氢能研究的必要性和必然性。
Narrated the importance of investigating hydrogen energy briefly based on the character of hydrogen, the policy of environment and the situation of energy for the moment.
研究了主型的有关性质，证明了一个素模型存在的充分必要条件。
A necessary and sufficient condition of the existence of prime model is proved.
研究了主型的有关性质，证明了一个素模型存在的充分必要条件。
A necessary and sufficient condition of the existence of prime model is proved.
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