零星工作

Substantial researches on lanthanide carboxylate complexes have been investigated in the last two decades with rapid development of single-crystal diffraction technique; however, most of which merely are with a view to single or sporadic studies.

随着单晶衍射技术的快速发展，近年来稀土羧酸类配合物晶体结构的研究日益兴起，但大多数的研究仅仅着眼于单一或零星研究，系统性的研究工作不多。

But if all this is a chore, then you aren't serious in your intention.

如果这些对你来说只是零星的工作，那说明你并未认真对待你的目标。

" So we find monachism at first instinctive, informal, unorganized, sporadic; the expression of the same force working differently in different places, persons, and circumstances; developing with the natural growth of a plant according to the environment in which it finds itself and the character of the individual listener who heard in his soul the call of "Follow Me.

所以，我们找到monachism首先本能的，非正式的，无组织的，零星的；表达了同样的工作不同的部队在不同的地方，人，和情况；发展与自然生长的植物根据环境，它认为自己和性质的个别听众听到谁在他的灵魂的呼吁，大家跟我来。

So we find monachism at first instinctive, informal, unorganized, sporadic; the expression of the same force working differently in different places, persons, and circumstances; developing with the natural growth of a plant according to the environment in which it finds itself and the character of the individual listener who heard in his soul the call of "Follow Me".

因此，我们找到monachism在第一本能的，非正式的，无组织的，零星的；表达相同的部队不同的工作在不同的地方，人，和情况；发展与自然增长的一种植物，根据所处的环境，它发现自己和性格的个别听众听到谁在他的灵魂的号召，"大家跟我来"。

I don't have much work to do, just a few odds and ends to take care of

我没有太多的工作要做，只要处理零星的小事。

However, these successes are sporadic, and work on hard problems usually requires a proficient user.

然而，这些成功是零星的，艰苦的工作和问题通常需要一个熟练的使用者。

After analyzing the merit and lack of 9I model, the main idea is proposed: to distill some basic topological relations from 9I model, of which the composite topological relations of complex objects are made up. In detail, the composite topological relationships between region and region, line and line, line and region are particularly discussed;(2)Analyze the characteristics and inner relations of cadastral features. According to the expressional model of complex topological relations, the author discovers the possible topological relations between parcels, parcel lines and parcel points. In addition, sum up the general topological relationship rules of cadastral data.(3) Then the topological relations model is extended to the spatio-temporal data. Time in cadastral database and change semantic are discussed. It's redefined that spatio-temporal topological relations is composed of time, location, status and event relation. Spatio-temporal topological relationships can be represented by extended 4I model. Taking cadastral parcels as example, there are different possible spatio-temporal topological relationships between parcels when they are extended, shrunken, split, merged or others. Thus, some deductions are drawn that, for example, if parcels have be coexisting for some time they are impossible to be overlapped. Furthermore, the parents of parcels alternated and their possible change types can be detected by their spatio-temporal topological relationships.(4) Before carrying out the experiment, the calculation method must be designed.

具体研究工作及成果如下：（1）根据点集拓扑理论中与拓扑空间相关的概念，本文对空间的点、线、面进行了重新定义，以区分对象的复杂性；分析了9I模型在表示简单对象方面的优点，以及在表达复杂对象上的不足，阐述了本文的研究思路和解决方案，并以复杂的面面、线线和线面为例详细探讨了复合拓扑关系的表达方法；（2）分析了地籍权属数据和地类数据的内涵、特点和要素之间的联系，根据复杂对象的拓扑关系表达模型，本文讨论了宗地、界址线、界址点之间，图斑、线状地物、零星地类之间可能存在的拓扑关系和形式化表达方法，归纳总结了地籍对象的拓扑关系满足的约束性规则；（3）将拓扑关系的研究延伸到时空领域，从地籍对象的时态性出发，本文阐述了地籍数据中时间的含义和变化语义描述的需要；从时间、位置、状态、事件等之间的拓扑关系方面，重新系统性地进行了时空拓扑关系的定义；研究了一维时间和二维空间的集成表达方式，以宗地、界址线为例，分析了变更前后不同时间区间里可能的拓扑关系，探讨了时空拓扑关系对时空变化操作类型和变化语义的推理方法和意义；（4）为实现空间拓扑关系的查询分析等应用，本文研究了空间拓扑关系的计算方法。

In China,natural lacquer has been studied for a long time.Because to separate natural homologous is very difficult,it is almostimpossible to obtain a great deal of pure sample.So the structure ofmain constitute of Chinese lacquer urushiol has not an identicalresult due to the incomplete structural data. The urushiol diacetate derived from urushiol have beensuccessfully separated using centrifugal rotational TLC withpreparative silica get thin layer coated silver nitrate.

天然漆的研究，在我国有较长的历史，漆酚组分及结构做过一些工作，但由于天然同系物之间分离的困难，不易大量得到纯的样品，只能通过零星结构数据推断结构，致使中国生漆漆酚主要组分的结构没有一致的认识与确切的结论。

Perhaps foundation creative culture most important is cannot regard as fragmentarily some kind it, the intermittent work.

创建创造性文化的最重要的一点也许是不能把它视为某种零星的、时有时无的工作。

Mankind steped three stages during the process of the conservation of geoheritages :(1) various countries set up their own national parks individually and unsystematically in order to protect their geoheritages;(2) various projects were iniated or promoted by international organizations to protect the geoheritages world wide;(3) the division of the Earth"s Science, Unesco sponsors "Geopark Program" and establishes "World Geopark Network, resulting in the entering a healthy development stage of geoheritage comservation.

中国地质科学院，北京100037 [2]中国地质科学院矿产资源研究所，北京100037摘要：人类对地质遗产的保护经历了三个阶段：①各国分散建立国家公园零星而无系统的保护地质遗迹；②国际组织发起和推动，形成全球保护地球遗迹的多项活动；③联合国教科文组织地学部提出地质公园计划和建立世界地质公园网络，使地球遗迹保护工作进入一个健康发展的新阶段。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。