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Three months later, Nasa lost contract with its Polar Lander as it approached touchdown on the frozen South Pole of the planet.
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3个月后，航空航天局与其在火星冰冻的南极接近着陆的“极地登陆者”号探测器失去了联系。 |
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Three months later, he developed optic neuritis with subacute painless vision loss in both eyes.
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三个月后，他发展为视神经炎，双眼视力亚急性，无痛性下降。 |
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Three months renewable contracts are offered with accident insurance and other awards.
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三个月可延续合同以及人身意外保险及其它奖励。 |
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Three months went by before Aiqao knew it.
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阿巧在不知不觉间过去了三个月。 |
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Three new algorithms of bi-level integrated system synthesis,analytical target cascading and subspace autonomous optimization for multidisciplinary design optimization were summarized.Their basic ideas and architectures were discussed in detail,and their
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归纳和评述了二级集成系统综合法、分级目标传递法和子空间自主式优化方法3类基于系统分解的新算法及其改进算法,阐述了3种算法的基本思想、结构体系及其特点,讨论了它们对优化对象的适应性,并从分解标准、级数、收敛性和代理模型等方面对它们进行了比较。 |
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Three new asymmetric bis-Schiff bases containing thiocarbohydrazide were synthesized by the reaction of thiocarbohydrazide with ketone and different aldehydes step by step.
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通过二氨基硫脲与酮或不同的醛进行分步反应，合成了3种未见报道的不对称双席夫碱。 |
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Three new ferrocenylmethyl-substituted indenes and cyclopentadienes were synthesized by the addition of hydrogen anion and carbon anion to fulvene and benzofulvene respectively, moreover, their structures were characterized by NMR and MS.
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摘要本文以二茂铁基富烯和二茂铁基苯并富烯为前体，通过负氢和负碳对双键的加成，合成了3个新型的二茂铁基甲基取代的茚及环戊二烯，并对其结构进行了核磁及质谱表征。 |
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Three new measures will be launched on April 1 to improve roadside air quality.
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三项减少车辆排放量的新措施将于四月一日起生效，以改善路边空气质素。 |
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Three new vaccines were approved this year, one of them the world's first to prevent cervical cancer.
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今年有3种新疫苗已获批准，其中一种即为世界第一个子宫颈癌预防疫苗。 |
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Three o'clock is always too late or too early for anything you want to do.
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下午三点钟了，做什么事情不是觉得太早，就是太晚了。 |
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Three of 'em! Lordy, Tom, we're goners! Can you pray?
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我的老天爷呀，一共有三个！汤姆，我们死定了！你还能祷告吗？” |
