展望

This article reviewed on the definiens of allelopathy, allelochemical categories and interactants of them. Acting modes of the allelochemicals were discussed. The use of allelopathy and allelochemicals of plants to agriculture production was introduced. The existing problems and direction in the study on plants allelopathy were advanced in the end.

笔者综述了植物化感作用的定义，化感物质的种类及其相互之间的关系，化感物质的作用机制，并介绍了化感作用在农业生产中的应用及其前景，展望了化感作用研究的范围和方向。

According to some lectures and letters, this paper roundly expatiates QIAN Xue-sheng directing all history of foundation and development of the MMESE. It is including five aspects: directing foundation in time of the MMESE, emphasizing important effect of the MMESE, promoting flourish development of the MMESE, defining application field of the MMESE and looking into blaze foreground of the MMESE.

本文以钱老的一系列重要讲话和信函为根据，从指导人-机-环境系统工程的及时创立、强调人-机-环境系统工程的重要作用、促进人-机-环境系统工程的蓬勃发展、明确人-机-环境系统工程的应用领域和展望人-机-环境系统工程的光辉前景等五个方面，全面阐述了钱老精心指导人-机-环境系统工程的创立及发展的全部历程。

The following key future research fields are needed to understand and predict Antarctic Ice Sheet mass balance: Observation and modeling of the surface elevation changes, determination of surface mass balance and its distribution over drainage basins as well as fluxes at the grounding lines and the bottom melting underneath ice shelves, understanding of the deglaciation history, development, comparison and improvement of all kinds of models related to modeling and prediction of ice sheet mass balance.

南极冰盖物质平衡未来的重点研究领域是开展冰盖表面高程变化的监测与模拟，确定表面物质平衡及其在各冰流盆地的分布，着地线的冰流通量，冰架底部的融化，了解冰后期冰盖退缩的动力过程，以及开发、对比和改进与冰盖物质平衡模拟和预测相关的各种模型。关键词：南极冰盖；物质平衡；进展与展望

The market prospect of degradable plastics in China is reviewed.

预测和展望了中国降解塑料的市场前景。

The first part is the introduction, which concerns the delimitation of studied object, the study value, a review of the achieved and a prospect of the future.

第一部分是综述部分，包括研究对象的界定，研究意义和价值的分析，已经取得的成果的回顾，以及研究前景的展望。

Moreover, the future application prospect and further study trend of aerobic denitrification were proposed.

并对亚硝酸型硝化反硝化的应用前景进行了展望，提出了其今后的研究方向。

The author reviews the historical aspects of development and describes the present situation of pour point depressant at home and abroad.

指出了降凝剂在研究和应用中存在的问题，对降凝剂降凝技术的发展进行了客观评价和展望

Supercritical fluid expansion depressurization, a new method that has been developed recently is used to produce water-soluble drugs microparticles.

介绍了用超临界流体膨胀减压过程制备水溶性药物超细微粒的基本原理、工艺流程、技术特点、研究现状和主要研究结果，并展望了其发展前景。

At the same time, the global desalination industry analysis and prospects.

同时对全球的海水淡化产业进行了分析与展望。

Besides,the result of design and experiments is put forward and some key technologies of software are discussed in this chapter.

文章的最后进行了课题的总结和展望。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。