难点

The robbery is the judicial practice of a common multiple crime.

抢劫罪是司法实践中的一种常见多发性犯罪，也是学界争论较多，实践中难点不少的一种犯罪。

Research of the contradictories and theirevolvement is the emphasis and nodus in this paper. Contradictories includesauthorities and institution, multi-value and moral risk, harmony and competition, theyare represented as unbalanced transformation among authorities, capital and benefits;deviation between institutional rule and living logic; individual rationality andcollective choice; commonland tragedy; inside controlling and power renting.

系统中的矛盾及其演化分析是研究的重点和难点，主要从权力与制度、多维价值与道德风险、和谐与竞争三个角度展开，其中，权力与制度层面的矛盾包括权力、资本与利益的非均衡转化以及制度规则与生活逻辑的背离；多维价值与道德风险中包括个人理性与集体选择、公地悲剧、内部人控制与权力寻租。

Two difficult problems in automatic creation of BOM, that are communality of product information and the PDM system flexibility, are resolved.

在以上工作中，本文所作的创新工作有：(1)解决了BOM自动生成中的两大技术难点，即自动入库和BOM系统的可适应性。

The prediction of flow-induced noise is an important and complex issue in fluid-dynamic acoustics field.

流激噪声的预报问题是流体动力声学领域的重点和难点。

The structure is complex at the joint root of welding pipelines, where exist cold solder joint and cracks.

管道焊缝根部区域结构复杂，是未焊透和裂纹的产生处，反射回波杂乱，是超声波检测的重点也是难点。

The task of complex time series predicting is hard to be accomplished with only one single predicting model.

使用单一模型实现复杂时间序列预测一直是一个研究热点和难点问题。

The paper aims at the difficulty of preference representation, according to the concept of preference number and structure and compound rule, builds the model for aggregating group preference, and denotes preference structure with model of neural network, then gives out a methodology that preference is denoted by interval number, builds the model based on neural network and group preference, so preference representation is nonlinear, self-adapting, relearning.

针对决策偏好表示和集结的难点，在给出偏好由数量描述和结构描述的概念基础上，根据群体决策复合准则，建立了群体决策偏好集结的模型，并将神经网络模型用于表示决策者的偏好结构。提出用区间数表示决策者偏好的方法，建立群体偏好表示的神经网络模型，使得偏好的表示具有非线性，自适应及可学习的特点。

It is discussed in this paper the origins, development, functions and Characteristics of Laboratory Information Management System simply, and the designing principle, creating process, difficulties and the solution of the Laboratory Information Management System of the Computing Center concretely.

本文简要地介绍了实验室信息管理系统的起源、发展、功能和特点，具体地介绍了计算中心实验室信息管理系统的设计原理、开发过程以及遇到的难点和解决方案。

By case study and analyses, it is found that cultural meaning, figurative meaning, conceptive meaning and style meaning are the key points in translating theatre text, which should be paid enough attention.

通过对比和分析，发现在剧本翻译中对于文化意义、比喻意义、概念意义和文体意义的处理是剧本翻译的难点所在，应给予充分的重视。

This is the conclusion and most difficult part of this paper.

这是全文的归宿，也是本文的难点。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。