|
The development of research on synthesis of Butyl Butyrate and the catalysis of sulfonic acid, inorganic salt, solid superacid, heteropoly acid, enzyme catalysis compound are summarized.
|
|
|
摘要综述了磺酸、无机盐、固体超强酸、杂多酸、酶催化体系等对合成丁酸丁酯的催化作用及研究进展。 |
|
The development of science and technology provides a lot of new materials for the construction of equipments in small scale ammonia plants. This paper introduces their application and effect.
|
|
|
摘要本文介绍了科技发展中一些新型材料在小氮肥厂中的应用及效果。 |
|
The development of shear band was researched by analyzing the confining pressure-time history, volumetric curve and displacement field of PFC model.
|
|
|
通过分析围压－时步曲线、体变曲线和不同阶段的颗粒位移场的变化规律，研究了剪切带的形成与发展规律。 |
|
The development of silicate rock analysis over the last fifty years is reviewed in this paper.
|
|
|
摘要评述了矽酸盐岩石分析在过去的50年中的主要进展。 |
|
The development of social undertakings lags behind, and people have strong complaints about the cost and availability of schooling and medical treatment.
|
|
|
社会事业发展滞后，群众对上学难、看病难等问题反映比较强烈。 |
|
The development of solar energy cell: from 1615 this was invented that first Taiwan uses the solar heating air to expand acting and machine drawn water initial stage to France engineer Luo Men virtue cock, and the mankind directly use solar energy as the
|
|
|
太阳能电池的发展：从1615年法国工程师所罗门·德·考克斯发明了第一台利用太阳能加热空气膨胀做功而抽水的机器开始，人类将太阳能作为一种能源和动力直接加以利用，已有300多年的历史了。 |
|
The development of solvent extraction separation of alkaline earth elements was reviewed, according to the classification of extractants.
|
|
|
摘要本文就硷土金属离子萃取分离的进展情况，按萃取剂的分类进行了综述。 |
|
The development of stamping/extrusion tool includes design, process and trial run.
|
|
|
冲压与拉伸模具的设计开发和工艺设定与调试。 |
|
The development of such a telescope will be one of the great astronomical projects of the twenty-first century.
|
|
|
而开发这样一台望远镜将会是21世纪天文学的一个重要的研究课题。 |
|
The development of tertiary industry helps to promote economy structure adjustment, provide employment opportunity, better investment environment, stimulate urban and rural economy, raise overall efficiency of national economy and improve people's lives.
|
|
|
第三产业的发展有助于调整经济结构，提供就业机会，改善投资环境，促进城乡经济，提高国民经济综合实力，提高人民生活水平。 |
|
The development of the Chinese real estate market has shown, the real estate and financial circles are interdependent, supporting each other and common development in the past 20 years, the wave of the real estate market is closely related to the finance
|
|
|
近20年中国房地产市场的发展显示，房地产业和金融业是相互依存、相互支持、共同发展的，房地产市场的起伏与房地产金融及相关政策变动密不可分，中国房地产行业的问题一定程度上是房地产金融的问题和房地产金融体系的不健全。 |
