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The structures of phenylethanoid glycosides in plant extract of Cistanches deserticola were successfully analyzed and identified by electrospray ionization multi-stage mass spectrometry (ESI-MS(superscript n)) in negative mode, some interesting neutral lo
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摘要采用电喷雾多级串联质谱技术，对肉苁蓉药材粗提物中的苯乙醇苷类化合物的特征质谱行为进行了系统研究，根据一些特征的中性碎片丢失，提出了该类化合物的质谱裂解规律。 |
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The structures of the intermediates and product were characterized with 1H NMR and Mass spectra.
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中间体及産物用质谱和核磁氢谱进行了结构表徵。 |
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The structures, application fields, domestic existing situations and development of the hydraulic presses have been introduced with the development and improvement ideas to the trade hydraulic presses and the hydraulic press put forward.
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摘要介绍了液压机的结构、应用领域及国内技术现状，提出了液压机行业发展提高的思路。 |
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The struggle against imperialism and feudalism has achieved a foundemental victory.
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的职务，拒绝在对德“和约”上签字，反帝反封建斗争取得了初步胜利。 |
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The struggle between opposites is ubiquitous.
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对立面的斗争无所不在。 |
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The struggle for independence is gaining momentum every day.
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为独立而斗争的势头日益增长。 |
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The struggle is due to the polarity shifts upon earth that are pressing each into the opposing dance.
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挣扎极性是源于地球上极性的变更，从而将每人都压入相反的舞蹈中。 |
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The struggle pits one of China's biggest government-owned enterprises against a host of start-ups and underscores the dominant role the state continues to play even in one of the country's most dynamic industries.
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中国移动是全球拥有用户最多的无线通讯运营商，掌握了中国约5亿手机用户中的近3.38亿，就像众多无线运营商一样，中国移动也逐渐在网络数据服务的发展中看到了未来的商机。 |
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The struggle to meet the deadline.
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对抗最后期限的挣扎。 |
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The struggle took place over such a wide area, under such varying conditions and between so many people that any report at this time must at best be fragmentary and filled with errors.
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斗争所席卷的地区如此广阔，情况如此复杂，参加的人又是如此众多，因此，目前任何一篇关于这场斗争的报导，都难免会挂一漏万，谬误百出。 |
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The struggle, if there were one, need not be described. Let it suffice, that the clergyman resolved to flee, and not alone.
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如果这算是一场激争，那是无须描述的。只消一句话就足够了：牧师决心出走，但不是一个人。 |
