That is the biggest drawback to solar energy, the problem of what do you do in cases where the sun's light is weak or virtually non-present.
这是太阳能的最大缺陷——当太阳光变弱或者不存在时，人们该怎么解决。
The XSLT 2.0 document issued by the W3C (see Resources) specifies 49 elements in the XSLT namespace, including 14 new ones, and provides guidance about non-XSLT elements that might be present.
W3C发布的XSLT 2.0文档(请参阅参考资料)在XSLT名称空间中规定了49种元素，包括新增的14种，并对可能出现的非xslt元素提供了指南。
You'll want to present reasons for transferring that are grounded in the meaningful academic and non-academic opportunities afforded by the new college.
你将需要围绕新的大学能为你提供有意义的学术和非学术机会的事实来陈述转学原因。
It comes from the family of common viruses that causes colds, pneumonia, diarrhea, and pinkeye and is present in 30 percent of obese people and 5 percent of non-obese people.
它来自引起感冒、肺炎、腹泻和红眼的普通病毒家族，30%肥胖的人感染了这种病毒，而非肥胖的有5%。
Therefore, it seems that using SOAP-DSIG and SSL simultaneously is sufficient for non-repudiation, so I will now present two attacks by malicious recipients (not by third parties).
所以看起来同时使用SOAP - DSIG和SSL对于实现不可抵赖性来说已经足够了，那么我现在就提供两个来自恶意接收方(而非第三方)的攻击。
Present at this meeting are some 100 delegates from 30 countries including not only contracting countries, but also non-contracting ones.
此次与会的约有100位代表来自30个国家，既有缔约国，也有非缔约国。
Common strategies are to present the user with an opportunity to merge his changes or to restart the flow with non-stale data.
常用的策略是让用户有机会合并其变更或用未过期数据重启流。
This h_Vars special formula produces not only the non-system fields (ones that don’t begin with a “$”) present in the document, but also those specified by NotesVar and NotesField definitions.
h_Vars特殊公式不仅生成在文档中显示的非系统字段（不以 “$” 开头的字段），而且生成由NotesVar和NotesField 定义指定的字段。
At present, asynchrony for federated queries is available only on DPF-enabled instances of Websphere Federation Server, although IBM hopes to extend this capability to non-DPF instances in the future.
目前，只有在支持DPF的WebsphereFederationServer的实例上，才能在联邦查询中使用异步。不过，IBM希望在未来将该功能扩展到非dpf的实例上。
Since that situation is obviously a non-starter, there is a clear and present need to recruit people from abroad.
由于这种情况显然是一个非起动器，有一个明确而目前需要招聘人来自国外。
At present, however, reading is much more emphasized than writing in English teaching for non-English majors.
然而，在目前的非英语专业教学中，阅读往往比写作更受重视。
The yellow fever virus is constantly present in mosquitos and non-human primates in some tropical areas of Africa and the Americas.
黄热病病毒持续存在于非洲和美洲某些热带地区的蚊子和非人灵长类动物中。
Notably, brain activity was very similar for thinking about all of the non-present times (the imagined past, real past, and imagined future).
尤其引人注意的是，当测试者想象所有非当前时刻的事件时，其脑部活动极为类似(想象中的过去，真实的现在，想象中的未来)。
At the present point in time, meteorological and geological activity is significantly increasing and will do so at a non linear rate until we enter the short term period before the Pole Shift.
在目前的时间点上，气象和地质活动显著增加了，并会以非线性速下去，一直到我们进入极移前的短时期。
Haem iron only exists in animal tissues, whilst in plant foods iron is present as non-haem iron.
血红素铁只存在于动物组织，而在植物性食品铁本作为非血红素铁。
From flirting to non-verbal communication, the way we present ourselves to others is constantly shifting based on whom we are talking to, and why.
从调情到非语言沟通，我们在他人面前表现自己的方式根据不同的对象和原因在不断变化着。
At present, the total civilian shipbuilding industry share of the economy has more than 80%, of which 40% of non-ship industry.
目前，中船重工经济总量中民品份额已经超过80%，其中，非船产业达到40%。
In this paper we shall present a non-model method on analyzing the static characteristic of a-Si FET.
本文介绍一种分析非晶硅场效应晶体管静态特性的非模型方法。
At present, non-harmony about internal relationship in our country represent in five main areas, namely materialistic, selfish, dishonest and indifference are obvious in human communication.
当前我国人际关系失谐主要表现在五个方面，即人际关系过于经济化、利己化、冷漠化和失信化。
This Paper present a two-dimensional non-linear dynamic cutting model.
建立了金属切削过程的二维颤振数学模型；
The present study aims to clone interleukin-8 (IL-8) and express five mandarin fish non-specific immune genes in Escherichia coli, including interleukin-1?
本研究对鳜非特异性免疫因子白介素-8（IL-8）基因进行了克隆，并对已克隆的五个非特异性免疫因子白介素-1?。
Autoimmue liver disease and other hepatitis virus may be present in Non-A, Non-E hepatitis.
结论非甲-非戊型肝炎可存在自身免疫性肝病和其他类型肝炎病毒。
Because of particularity of structure and material, the piston must be measured by the non - contact method. but, at present there isn ' t mature technique.
由于活塞结构和材料的特殊性，对于它的检测只能采用非接触测量的方法，而目前尚没有成熟的技术。
At present, the existence of non-state-owned enterprises in China shows its inevitability and the rationality.
现阶段我国非国有企业存在有其必然性和合理性。
At present, the existence of non-state-owned enterprises in China shows its inevitability and the rationality.
现阶段我国非国有企业存在有其必然性和合理性。
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