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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
The broad sense of manufacturing theory, which extends the concept of manufacturing, is an important development in the 20th century.
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The utilization of vibration and wave, which was developed during the latter half of the 20th century, is one of the most valueable technology applications and has been rapidly developing recently [1-10].
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Outstanding Biologist of 20th Century (on the 75th Anniversary of the Birth of Academician V.E.
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History of Marine Microbiology in Russia (the Soviet Union) in the Second Half of the 20th Century
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Gilyarov's scientific school in the development of the subject and methodology of a new complex discipline formed in the mid 20th century-soil zoology-was considered.
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| | By surveying the develop history of ships it can be showed that shipbuilding technology was subjected by human productive level on the one hand,and greaty reacts on productivity development and the change of productive relationship on the other hand.The large scale nautical activities not only inceased human knowledge of astronomy, geography,biology and other areas,but also leaded a series of new discoveries on geography,as a result there were a large scale slave se... | | 通过对船舶发展史的研究,可以看到:一方面造船技术受到人类生产水平的制约,另一方面它又反过来给生产力的发展和生产关系的变革以巨大的反作用。大规模的航海活动,不只丰富了人类许多学科的知识,而且一系列地理上的新发现,以及奴隶贩卖和殖民掠夺,为资本主义发展初期原始资本的积累和海外市场的开辟创造了条件,从而促使封建制度的崩溃和资本主义的发展。现在由于通讯技术和航空技术的发展,船舶在沟通各地区的文化交流和人员交往方面的职能日趋下降。但是由于现代工业生产日趋国际化,海上交通运输仍然是人类全部经济活动的重要支柱。到二十一世纪,由于人口的激增、能源和粮食的短缺,海洋将成为人类主要的能源基地和食品基地,成为人类重要的生产和生活的场所。为了开发海洋,人类将研制各种工作船舶,船舶作为物资运输的职能将逐步下降,代之而起的主要职能将是海洋的开发和海洋资源的利用。 | | 文摘来源 | | By carefully interpreting the Xizang Landsat imageries, we have discovered a series of active faulting belts and recent basins. Moreover, magmatism and volcanic and geo thermal activities may come very intensive in Xizang. We have applied the Landsat image to making the seismo-tectonic map of Xizang. It shows that the Xizang plateau has three main structural types. The south Xizang area consists of many closely parallel and rectilinear lineaments which indicat... | | 陆地卫星影象表明西藏地区存在一系列活动断裂带,晚第三纪以来的新生盆地和火山活动都十分强烈。从卫星照片中的线性构造及其组合特征分析,西藏高原具有三种不同的构造组合,雅鲁藏布江以南多为近东西向线性构造,为强烈挤压的形变特征,中部多为连续分布的透镜状构造,反映了地壳物质塑性流动的形变特征,羌塘高原则为共轭破裂的形变特征。这些特征客观地反映了西藏高原各块体之间的力学性质和介质条件的差异,也控制了西藏地区的地震活动性。 | | 文摘来源 | | The root bark of Dictamnus dasycarpus Turcz. is one of traditional Chinese medicines. It was reported in the 70's of the 20 th century that it showed not only antibintic (including tubercle bacillus) but also with some anticancer activities. From the results obtained by Eosin test, the anticancer activity in vitro of the non—polar extracts was confirmed. Nine compounds were isolated from both the ether extract and volatile oil, Five of them. ... | | 白鲜皮(Dictamnus dasycarpus Turcz.的根皮)是我国传统中药,70年代曾有报导表明白鲜皮具有抗菌(包括抗结核菌),抗肿瘤活性。本文报导了依据伊红染色试验确认其非极性提取物具有体外抗癌活性,并从其乙醚提取物和其挥发油部分共分离得到九个化合物。根据其理化性质和光谱分析鉴定了其中的五个化合物——梣酮(Fraxinellone)(也得自其挥发油中),β-谷甾醇,白鲜碱(Dictamine),黄柏酮(Obacunone),和柠檬苦素(Linionin)。药理实验表明梣酮,白鲜碱和得自挥发油的一种无色透明液体(化合物I)具有体外抗癌活性。 | | 文摘来源 | |   | | << 更多相关文摘 |
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