查询词典 on principle

The available WRV models such as shadow price model, marginal opportunity cost model, reproduction model, income present value model and supply-demand price model are introduced, and their principle, applicability, merits and demerits are analysed. And then, this paper discusses various factors which may have influence on WRV. Finally, this paper establishes the fuzzy model of WRV.4. Based on the real situation of China, this paper deals with the problems of sustainable utilization of water resources.

指出现有的影子价格模型，边际机会成本价格模型，再生产模型，收益现值模型，供求定价模型等水资源价值模型各自的模型原理、适用性及其优缺点，然后在此基础上论述有关因素对水资源价值的影响，指出水资源价值的模糊属性，构建了水资源价值模糊数学模型。

According to the study on the existed fire fighting equipment in port, using fire protection systems of oil tank areas and oil terminals in China and abroad for reference, basing on the principle of systematic engineering, and applying LAN and PLC techniques, we developed the efficient, reliable and advanced fire protecting system which integrates fire-protection early-warning subsystem, fire protection control subsystem, and fire-fighting execution subsystem applicable to oil products operating site of the New Port. This system integrates the fire-protecting equipment and resource of the New port efficiently with less cost to form an organic system, and increase greatly the accuracy, reliability and reaction speed of fire fighting.

通过对目前港区现有消防设备的研究，借鉴国内外油库区、油码头消防系统，用系统工程原理，应用局域网络技术及PLC技术，研发出了适用于新港油品作业场所的集消防预警子系统、消防中心控制子系统、消防灭火动作执行子系统于一体的高效、可靠、先进的消防系统，该系统以较低的成本最大限度将新港的消防设备及资源整合起来，形成一个有机的体系，极大地提高消防灭火的准确性、可靠性及反应速度。

The submodel quantitatively characterized the impact of genotypic differences on sowing date and sowing rate by tillering ability and percentage of final spikes to effective tillers, and the suitable pre-winter leaf number on main stem in relation to yield target is quantified according to the principle of determining spike number from yield level and leaf number from spike number.

其中，播前方案设计的知识模型包括产量目标，品种选择，播期确定，基本苗及播种量的计算，氮、磷、钾肥料运筹和水分管理；动态调控指标的知识模型包括适宜生育期，穗分化进程，群体茎蘖动态、叶龄动态、叶面积指数动态和干物质积累动态等生长指标动态以及有效叶面积率、高效叶面积率和粒叶比等源库指标。

Based on the "relevant principle", that is, choosing the language structure which is able to convey and strengthen the themes and aesthetic effects of works, the thesis, with the application of the theories and approaches of functional grammar and mainly from the perspectives of the ideational, the interpersonal and the textual function, makes a stylistic analysis on the autobiographical novel A Portrait of the Artist as a Young Man by James Joyce, the most influential Irish writer in the 20th century, illustrating how he conveys and strengthens the themes and aesthetic effects through his choice of language structure in the novel and exemplifying the merits of functional stylistics.

本文根据&相关性&原则，即选择能表达和深化作品的主题意义和美学效果的语言结构，尝试运用韩礼德等人的功能语法的理论和方法，从概念功能、人际功能和语篇功能三个方面分析二十世纪最有影响力的爱尔兰著名作家詹姆斯乔伊斯创作的有自传体特色的《青年艺术家的画像》，以阐明作家在《画像》中如何通过语言的选择，达到深化作品的主题意义和传达美学效果的目的，同时也例证了功能文体学的魅力和价值。

In addition, the blank holding force that is required to avoid wrinkle and rupture during conical part deep drawing is researched. The necessity of reasonable blank holding force in pressing is expounded. From the view of mechanical analysis, the wrinkle critical condition of side-wall is derived for the first time by the stress state of side-wall, the main deformation region on blank. According to the critical condition of plastic instability for flange, side--wall, corner of punch on blank, The blank holding force in conical part deep drawing is divided into four different regions within its forming figure. The basic principle of reasonable blank holding force during stamping is summarized and provided. The mathematical model of reasonable blank holding force that avoids the wrinkle and rupture is established and verified by the finite element numerical simulation and the grid experiment method. The result shows that it is accurate and reliable.

此外，本文还研究了圆锥形件拉深成形过程中，随着拉深变形过程的进行，毛坯为避免产生起皱、破坏缺陷而对压边力的需求情况，阐明了圆锥形件拉深成形过程中压边力合理变化的必要性；由毛坯主要变形区悬空锥壁部分的受力变形情况，从力学分析的角度，首次推导得出了圆锥形零件悬空锥壁起皱失稳的临界条件；并根据主要变形区法兰、悬空锥壁及凸模圆角部分的塑性失稳临界条件，在其成形范围图中，将圆锥形件成形过程中的压边力划分为四个区域；总结并提出了圆锥形件成形过程中压边力合理变化的基本原则；建立了防止起皱、破坏缺陷产生的压边力合理变化的数学模式，并得到了有限元数值模拟及网格实验法的验证，证实了理论分析结果的正确性和可靠性。

Materials And Methods 1, The animal model of Sprague-Dawley rat for maxillary protraction was made in this study, and an appliance based on the principle of protraction headgear was designed and made for maxillary protraction treatment which was hooked over the front of the zygomatic arch ,and a hole was made on the skull in the experimental group rat .

以面具式前牵引矫治器为原理制作特殊的前牵引支架，以外科方法安装支架挂在大鼠颧弓前端，在实验加力组大鼠头颅上打孔，安放挂钩，通过弹性牵引提供支架向前牵引的支抗。2、以该动物模型为基础，选用90只五周龄的Sprague—Dawley健康雌性大鼠作实验动物，随机分到实验加力组、正常对照组、手术对照组。

Under this background, directed by Marxism—Leninism, Mao Tse—Tung thought, Deng Xiaoping"s theory and Chairman Jiang"s important thought,I wrote this article with document analytical method, investigative study method, comparative analysis and so on. I have been insisting on the principle of combining theory with practice, centralising functional analysis of politics and factors that influence the effect of mental and moral education. And I mainly analyse the related factors that restrain the effect of mental and moral education. Furthermore, according to the practice of teaching in school, I gave the measures to strengthen the entire effect of mental and moral education.

在文化多元、价值多元背景下，本文以马克思列宁主义，毛泽东思想，邓小平理论，&三个代表&重要思想和科学发展观为指导，运用文献分析法、理论研究法、经验研究法、调查研究法和比较分析法等研究方法，坚持理论联系实际的原则，以&高中思想政治课的德育功能分析，德育'低音频'效果检视，影响高中思想政治课的德育效果的诸因素分析&为中心，着重分析制约高中思想政治课整体德育效果的相关因素，并在此基础上，联系学校教育教学实际，提出了增强高中思想政治课整体德育效果的对策与路径。

This paper also analyzes the composition teaching structure and the new features of all kinds elements based on information technology with systematic theory ,classifies composition teaching software, talks about the thoughts and principle of composition teaching software design and development and inquires into the two models under the circumstance of multi-media teaching and network teaching on the basis of the analysis of writing psychology and structural learning theory and explains them with two specific teaching cases.

并分别在对写作心理学、建构主义学习理论分析的基础上，探讨了在多媒体教学环境和网络教学环境下信息技术作用于作文教学的两种主要模式，并用两个具体教例来加以说明。本文认为现代信息技术与作文教学整合实践中有一些认识上的误区和实际问题，就此本文展开了一些讨论。

Finally, the thesis presents how to understand and deal with the relationship properly: firstly, liberating minds and thinking like it is, getting rid of the influence of the "leftism" and rightism, on one hand we should consider the opposing and competing relationship between socialism and capitalism and stuck to the social principle, on the other hand we should consider the inheriting and developing relationship between socialism and capitalism and make full use of capitalism to develop socialism.

文章最后就如何正确认识和处理社会主义与资本主义的关系提出了一些思考和启示：一是要解放思想、实事求是，排除&左&和右的千扰，既认清社会主义与资本主义的对立竟争关系，坚持社会主义原则，又认清社会主义与资本主义的继承发展关系，充分利用资本主义发展社会主义。

Based on analyzing the optical activity of BSO and the principle and structure of the BSO-based optical-addressed spatial light modulator, the influences of the optical activity of BSO on the performance of SLM are concluded.

对BSO晶体的旋光效应特性及BSO基光寻址空间光调制器的结构及工作原理的研究表明晶体旋光效应会影响空间光调制器的图像转换质量。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。