查询词典 problems

Therefore, this article unifies some problems in laws and regulations as well as the practice, and then elaborates the definition, the problems of the probations of labor contract, following some suggestions of solving these problems.

鉴于此，本文结合我国已有的法律法规以及实践中存在的一些问题，阐述了我国劳动合同试用期的定义，存在的问题以及解决问题的一些建议。

Unit fraction concepts: The description problems of language of halves are easier than the problem of symbol of 1/2. Students have the habit to deal with unit of things of all contents. When they face the problem of remaining to divide again, they would by oneself increase or reduce the thing of contents. And students were inclined toward each fraction appearing in the same contexts of assumption of ego to have the same deal of unit. When facing comparing problems could be influenced by intuition rules of Same A — Same B and solving problems incorrectly.

单位量概念的表现：一半语言叙述的问题的表现优於具二分之一符号的问题，较习惯用全部内容物当单位量，面对余量再分问题时会自行增减内容物改变单位量，会倾向於自我假设在同一情境中出现的各个分数具有相同的单位量，面对比较问题时受直观规律Same A─Same B的影响而错误解题。

Under the new situation of socialistic marketing economy developed and in China and the globalization around the world, these type of enterprises also face many new problems. This paper gives some ideas and opinions of how to solve these problems and make these enterprises survive and develop. This paper consists of two parts:(1) Introduces the history of the Chinese state-owned trading enterprises and the main problems faced by them.

在社会主义市场经济的完善与发展和经济全球化的新形势下，企业也面临着很多新的问题，如何解决这些问题，使企业在新的形势下得以生存和发展，本文结合作者所在的企业和行业的情况就如何提高企业的竞争力提出了一些建议。

Based on these, an improving μ-synthesis is presented, with which the high-purity distillation is designed well. 2. The robust performance problem of MIMO plant is explained with the plant direction angle, which shows that the robust performance varies with different input uncertainties and the μ-synthesis should be applied correctly according to the uncertainty structure. 3. Condition number and bandwidth are the important items for robust performance design in MIMO system. The H〓 two-block problems can not deal with the robust performance design of MIMO system because of the condition number cancellation. A general μ-synthesis procedure for MIMO system with uncertainties is presented. 4. For the SISO system, the object function in robust performance is amplified by at most 〓 than that of H〓 two-block problems in value: So the robust performance of SISO system can be done with the H〓 two-block problems to avoid the complicated μ-synthesis procedure. 5. All the conclusions and methods presented in this paper are demonstrated by some typical design examples.

从而形成一种改进的μ综合方去，并对精馏塔病态对象进行了鲁棒性能设计，得到令人满意的结果；（2）利用对象的方向角解释了MIMO对象鲁棒性能设计出现问题的原因，并提出不同输入摄动形式下系统的鲁棒性能问题也并不相同，因此利用μ综合处理鲁棒性能设计时，应根据不同的摄动情况采用不同的结构进行设计：（3）条件数问题和带宽问题是MIMO系统鲁棒性能设计的两个主要问题，指出由于条件数对消的存在使得一般H〓两块问题无法处理MIMO系统的鲁棒性能设计，而μ综合方法则是处理MIMO系统鲁棒性能设计的有效方法，并给出了其处理MIMO系统鲁棒性能设计的一般性方法；（4）提出对于SISO系统H〓两块问题（S/T问题、S/KS问题）的设计指标函数与鲁棒性能设计的μ指标函数在数值上最大差〓倍，因此对于一般SISO系统的鲁棒性能设计可以简单地用一般的H〓的两块问题处理，而避免μ综合设计的复杂过程；（5）本文中提出的结论和算法都利用H〓/μ发展中的典型例子：Doyle-Stein问题，Safonov的战斗机模型，精馏塔对象等进行了设计验证。

At first, the author thinks that the core of direct tax problems of E-C Tax Law is to determine the tax jurisdiction to e-commerce. The paper analyzes the following three questions on the Permanent Establishment principles and income classification rules. Secondly, this paper foucuses on indirect tax problems of E-C Tax Law, including tariff and VAT. Thirdly, this paper foucuses on tax management problems of E-C Tax, including tax evasion and electronic tax. At last, the author discusses the E-C Tax Law of China and puts forward some constructive suggestions on the E-C Tax policy and law of China based on the study of the former parts.

首先，笔者认为电子商务的直接税法律的核心就在于如何界定对电子商务的国际税收管辖权，本文分别从常设机构原则、所得分类规则对电子商务的国际税收管辖权进行了界定：其次，本文对电子商务引起的关税、增值税两方面的法律问题进行了分析；再次，本文研究电子商务引起的税收征管法律问题，包括电子商务引起的逃避税法律问题和电子税务问题，并分析了电子税务建设和完善所必需的法律环境；最后，本文研究我国的电子商务税收法律问题，结合我国实际情况，对我国电子商务税收政策与立法提出了若干建议。

A particular class of problems, known as Grand Challenge problems, are problems whose full solution requires semi-infinite computing resources.

某一特定类别的问题，被称为大挑战问题，这些问题的全面解决方案需要半无限的计算资源。

Do not get married will have a range of issues, such as children's growth problems, account problems, school problems.

不结婚会带来一系列问题，如宝宝的成长问题，户口问题，上学问题等。

The tracer migration that the tracer concentration continuously injecting into semi-infinite sand column(initialization velocity is zero) and the pollutant continuously enter into aquifer through a discharging well that completely enter into the dive aquifer are two representative groundwater pollution problems ,Then this paper respectively sets above two decided solution problems and the union simulation problem of groundwater and solute as examples, from the question description, the mathematical model selection and determination, the parameters selecting to carry on the value computation, the read-write of attribute data , visualizes by the IDL programs, carries on the numerical simulation and the visualization post-processing to the above groundwater pollution problems, and according to the numerical solution and the solute migration curves, briefly analyzes and predicts the temporal and spatial distribution features and distribution range of contaminant concentration.

然后分别以半无限长沙柱中连续注入示踪剂浓度的运移、污染物通过一完全进入潜水层的排放井连续进入含水层这两个典型地下水污染定解问题及地下水流和水质联合模拟问题为例，从问题描述、数学模型选取确定、参数选取到运用IDL编程进行数值计算、属性数据读写、可视化，对上述地下水污染问题进行数值模拟和可视化的后处理，并根据数值模拟的数值结果和溶质运移曲线，对污染物浓度的分布范围及随时空变化趋势作了简要分析预测。

Consequently, it leads to a lot of problems which could cause the imperfect procedure of new products introduction, delay of marketing and quality problems for new products which finally results in the customers' dissatisfactions, degradation of enterprises brands and decline of competitiveness. Some research data show that Chinese company may have some problems in their new product introduction process: the product can't meet customers requirement in the market; don't design or introduce new product to meet customers' requirement; many times rework in the introduction process, and redesign the new product after introduction; without timely introduction plan, the new product introduction cycle is slow compare to the transnational Corporations and new technology.

研究资料表明，中国企业在进行产品导入的过程中经常会出现以下问题：上市的产品有诸多质量毛病，不能满足客户的需求；新产品开发和导入过程中，仍然奉行技术导向的思路，自己能做什么就做什么，而不是千方百计满足顾客的需要；产品导入过程经常出现返工，不断地从生产甚至是从市场返回到设计部门重新设计，导致大量的重复劳动；产品导入速度相对市场中的跨国企业以及行业的技术更新，显得非常缓慢，新产品开发和导入项目在开展时缺乏精确的进度计划，因此缺乏进度控制等等。

Global warming, destroying of ozonosphere, desertization, acid rain and other environmental problems are not any problems of one country because these problems have threatened fundament for survival of all lives on the earth.

在我们身边发生的地球温暖化及臭氧层破坏、沙漠化、酸雨等地球环境问题不再是某一个国家的问题，如今已经成为威胁到地球上所有生物赖以生存的根本的问题。

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％。