principal problem

This paper puts forward a problem in crystal optics teaching which merits our attention: principal plane and principal section are two different physics concepts. The two concepts cannot be confused, nor be neglected in teaching.

本文提出了晶体光学教学由一个值得注意的问题：主平面与主截面是两个不同的物理概念，两者不能混为一谈，在教学中也不能有所偏重。

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As I see it, parents are a principal cause of the problem.

在我看来, 父母在这个问题上应负主要责任.

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Since trigonometric functions are continuous at all points including the boundary of the principal value region, this technique naturally solves the problem of the break of phase differences and eliminates the data match error.

由于三角函数在主值区间内及边界处都是连续的，因此该方法解决了相位差在主值区间边界处的跳变问题，从而完全消除了相位差跳变引起的数据拟合错误。

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Objective To study principal of ABC sort management of case history, evaluate the sort management of efficiency and solve the problem of more personnel and less storeroom area.

目的研究病案ABC分类管理的原理，评价病案ABC分类管理的效率和效益。解决病案管理中使用人员多和库房面积小的实际难题。

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The second part of the text solves the problem of the nature of indirect principal by the means of theoretical and normative investigation into the theory of essential elements.

第二部分本文是根据构成要件理论的规范性的考察方法解决了间接正犯的正犯性问题。

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The settlement of MSW landfill is a principal Geotechnical Engineering problem of sanitary landfilling.

生活垃圾卫生填埋场的沉降是目前卫生填埋法所涉及的主要的岩土工程问题之一.

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Continuous production of cheapness hydrogen is a principal problem for large scale application of fuel cell.

廉价氢气的可持续生产是实现燃料电池规模化的首要问题。

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ESO aligns principal and agent to the same goal and accordingly relieves the problem.

经理股票期权制是使代理人和委托人利益趋同的合约,可以有效缓解委托代理问题.

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Feature extraction is a principal problem for handwritten numerals recognition.

特征提取是手写体数字识别研究中的重要问题。

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The new plan seems to make sense if and only if the principal problem is illiquidity.

只有当首要问题是缺乏流动性的时候，新的计划才似乎有意义。

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The choice of supply chain partner is principal problem in the course of formation of partnership. The model of compositive appraise can solve the problem primely.

在伙伴关系的形成过程中，合作伙伴的选择是首要的问题，用模糊数学的综合评价模型能很好地解决这个问题。

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The principal problem on durability in southern region is analyzed in this article.

分析南方地区的主要耐久性问题。

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Tax income is the most principal origin in financial income, how to levy a new tax, formulate a set of good tax system, that's the most important problem for every government.

税收收入是现代国家财政收入的最主要来源，如何开征一个新的税种，制定一套良好的税制，是每一个政府最重要的课题。

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