So, remember, when we set up the divergence theorem, we need the normal vectors to point out of our region, which means that on the top surface, n But, on the bottom face, we want n pointing down.
当我们建立散度定理时，我们要使法向量指向区域外，即在上表面时，要指向上方。，we，want，n，pointing，up。,但是，在下表面，要使n指向下面。
Iran faces a U. N. Security Council deadline on Thursday to stop uranium enrichment, or face possible sanctions.
联合国安理会限定伊朗必须在星期四以前停止浓缩铀，否则就可能面临制裁。
N raised the candle, and I discerned a soft-featured face, exceedingly resembling the young lady at the Heights, but more pensive and amiable in expression.
迪恩太太举起蜡烛，我看见了一张柔和的面孔，极像那个在呼啸山庄的年轻小姐，只是面相看上去更深沉，更亲切。
Meeting leaders should talk less than in face-to-face meetings and listen more, says Paul Donehue, president of Paul Charles & Associates, a Londonderry, N. H. , sales-management consulting firm.
新罕布什尔州伦敦德里（Londonderry）销售管理咨询公司PaulCharles&Associates总裁保罗·多尼休（Paul Donehue）说，主持人应当比开面对面会议时说得更少、听得更多。
"Russell wrote, sang, and produced some of the top records in rock 'n' roll history and was well-known for his" striking appearance, "with" wispy white hair "that" covered much of his face.
拉塞尔谱写、演唱并制作了摇滚乐史上一些排名靠前的唱片，他的“显著外貌”非常出名，“纤细白发覆盖了脸的大半部分”。
"Russell wrote, sang, and produced some of the top records in rock 'n' roll history and was well-known for his" striking appearance, "with" wispy white hair "that" covered much of his face.
拉塞尔谱写、演唱并制作了摇滚乐史上一些排名靠前的唱片，他的“显著外貌”非常出名，“纤细白发覆盖了脸的大半部分”。
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