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。

youdao

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。

youdao

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。

youdao

They played one in court Tuesday. (Speech) In this October 1991 speech, Karadzic warns the non-Serbs present not to try and secede from Yugoslavia or they will end up on a road to hell from which they may disappear.

VOA: standard.2009.10.27

However, the Court found a commerce clause problem with non-present sellers being subject to sales tax collection due to the existence of thousands of jurisdictions with non-uniform sales tax rules.

FORBES: After Twenty Years Congress Still Has Not Acted On Sales Tax

It makes it indisputable that a body covering similar to feathers was present in non-avian (flightless) dinosaurs.

BBC: Dinosaur was covered in feathers

The Salafists, though declaring themselves non-violent at present, could yet Israelis fear turn jihadist.

ECONOMIST: Israel and the Islamists