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Association rule is an important content in data mining, efficient arithmetic is the most important part of data-mining 昺odel, especially when facing the complicated and various demands, it is necessary to propose characteristic and complementary arithmetic according to different factors. The paper analyses elaborately the idea of association rule mining arithmetic based on constraints, studies the classes of constraints in order to confirm its utility. The arithmetic aiming at united variable constraints improvement strategy and exchange of complication aggregation constraints has been designed, the practice has proved that it is effective.

关联规则是数据挖掘研究的重要内容，高效的算法是数据挖掘的重要组成部分，而且面对复杂的多方面的需求，应提供针对各种因素的各具特色的互补的多种算法，本文详尽地研究了基于约束的关联规则挖掘算法的思想，深入地研究了约束的分类、确定其可利用的性质，在此基础上提出了针对联合约束中前驱和后继重叠时的改进策略和复杂聚集约束的转换方法。

In the generalization of contact lens develops day by day, on the issue associated with corneal infection due to incorrect habit of contact lens is put much emphasis. Pseudomonas aeruginosa is one of the most important infectious pathogens, it will adhere on the cornea and destroy the corneal tissue opportunistically with its quite violent virulence. The infected corneas will be attacked to necrosis by one to two days with very fast destructive speed. It is very important to diagnosis the infectious pathogen in time.

在隐形眼镜愈来愈普及的趋势下，因隐形眼镜配戴习惯不正确造成角膜感染的议题也逐渐受到重视，而绿脓杆菌正是其中最重要的一种感染病菌，其会附著在角膜上，然后伺机地破坏角膜组织，绿脓杆菌毒性相当猛烈，故其破坏的效率相当地快，角膜大概一至二天就会被摧残溃烂，因此即时诊断出角膜感染的病原体是相当重要的。

Organosilicon material has a series of outstanding performance. Now it has become the important branch of chemicals industry and held a very important status in our country's economy.

有机硅材料具有一系列的优异性能，迄今已发展成为技术密集、在国民经济中占有一定地位的化学工业的重要分支，并使各行业获得了巨大的经济效益。

As one of the important medicated factor of osteoclast activity, PTHrP can induce the differentiation and mature of osteoclast and play an important role during the genesis and development of osteolytic bone metastasis of breast cancer.

PTHrP作为重要的破骨细胞活性介导因子之一，诱导破骨细胞分化和成熟，在乳腺癌溶骨性骨转移的发生、发展中起着重要作用。

vWF and Ps are involved in acute cerebral infarction, hepertension and diabetes mellitus,The result suggested that the contents of vWF and Ps play an important role in the development of acute cerebral infarction, The study of vWF and Ps in molecular biology is important in outbreaking mechanism of acute cerebral infarction, making a diagnose and giving treatment.

急性脑梗死、高血压、糖尿病患者vWF、Ps表达上调，说明vWF、Ps参与了急性脑梗死、高血压、糖尿病的病理过程，因此，vWF、Ps的增高，在急性脑梗死的发生和发展过程中起着重要作用。

The integrate evaluation by using multiple indicator mentioned above can reflect the change of sports load and athletes' functional status and the degree of the sports fatigue comprehensively and sensitively, can offer quantified scientific basis to diagnose the sports fatigue by the combination of Chinese and western medicine. It is also very important to control training load, judge sports fatigue, prevent overtiredness and development of sports injury to excavate demic sports potential efficaciously, raise contest ability etc, and has become all important part of scientific training.

用上述指标进行综合评定，能较灵敏地反映运动负荷量的变化和运动员的机能状态及运动性疲劳程度，为中西医结合诊断运动性疲劳提供科学依据；同时对控制训练负荷，判断运动疲劳，防止过度疲劳和运动损伤的发生，有效地挖掘人体的运动潜力，提高竞技能力等，均有十分重要的意义，并已成为科学训练的重要环节。

As far as animals'NISP is concerned, domestic animals occupy a very large proportion, while the proportion of wild animals doesn't exceed 25% all the time. Based on such statistics, it can be inferred that the manner by which ancient settlers of Erlitou site acquired their meal resources can be defined as"exploiting type".In the dietary contribution of this site four species, which are Sus scrofa domesticus, Ovis sp., Capra sp., Bos sp. and Cervus nippon, formed the most important and stable meal source of ancient settlers of Erlitou site. Meanwhile, Sus scrofa domesticus played the most important role among the four species.

本文可以确定狗、猪、山羊、绵羊和黄牛这五种动物为二里头遗址先民们饲养的家畜，它们的可鉴定标本数在全部动物可鉴定标本总数中占有非常高的比例，野生动物的比例始终没有超过25%，据此笔者认为二里头遗址先民们获取肉食资源的方式应属于&开发型&；从肉食结构来看，猪、牛、羊、梅花鹿这四种动物构成了当时二里头人最为重要而稳定的肉食来源，在这四种动物中，又以猪最为重要。

Contour current is one of the important sedimentary dynamics, the deposits (so-called contourite) of which contain important information of palaeooceanography and palaeoclimatology.

等深流是大洋环境非常重要的动力学机制，其沉积蕴含了重要的古海洋学和古气候信息，对其进行解析是近些年国际海洋学、气候学的研究热点。

The evolvement of climate environment in the geological history is one important contents ofthe paleoceanography research and has an important significance.

地质历史时期古海洋气候环境的演变也是古海洋学研究中的一项重要内容，具有十分重要的意义。

As an important tectonic boundary of Northeastern Tibetan Plateau, the Liupan Shan is closely influenced by the uplift/growth process of the Tibetan Plateau, it also plays an important role on the paleogeographic evolution of Chinese Loess Plateau.

作为青藏高原的东北构造边界的六盘山，它的形成演化与青藏高原隆升/增生息息相关，同时六盘山的隆升对黄土高原古地理分异演化产生了重大影响。

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。