边际

This paper presents a novel model of short-term trade planning in a competitive electricity pool, with the settlement rules involved in the objective function. Moreover, the concept of system marginal price is improved so as to reflect the reasonable distribution of benefits between transaction centers and suppliers. And the justice criterion from the standpoint of power plants is proposed, as well as the optimality criterion from the standpoint of transaction centers.

文中结合我国的实际情况，建立了以电网为核心的买电型短期交易计划的模型，提出了兼顾电网交易中心与发电商之间利益合理分配的浮动边际电价的新概念，并从电厂的角度给出了短期交易计划的公平性准则，从电网交易中心的角度给出了最优性判定准则。

The fast development of science technology makes the products and production equipment can outdate easily. The market quota or marginal profit can be "robbed" by rivals immediately. The life cycle of a product is much shorter. As the society becomes richer and richer, the characteristics of market demand can be concluded as small volume, diversification, and variability.

科学技术的飞速发展，使得企业产品和生产设备很快就会过时，所占有的市场份额或边际利润顷刻间被竞争对手"抢走"，产品寿命周期大大缩短；随着社会富裕程度的逐渐提高，市场需求将呈现小批量、多品类、易变化的特点。

The marginal product of labor is the increase in the amount of output from an additional unit of labor.

劳动的边际产量是增加1单位劳动所得到的产出量的增加。

Marginal cost is the extra cost of producing a unit of output.

边际成本是生产每多一个单位产品而增加的额外成本。

Roller when not in use on a public holiday in outrigger canoes, rollers in a dry, cool place.

不朱辊节假日不用时不收在不朱辊木架上，在潮湿、风凉的边际。

As far as the marginal effect is concerned, both models show that the variable " rapid expansion of universities " has the highest marginal probability among all factors which have significant impact on overeducation by both models.

在边际影响方面，相同处：「受大学快速扩张影响」、「拥有较多小孩子数」发生超额教育的机率「愈高」；「父母教育程度愈高」、「公部门就业者」、「现职年限愈长」发生超额教育的机率「愈低」。

Mathematically, the MPPs are given by the partial derivatives of the production function.

数学上，这些边际产量是生产函数的偏导数

His personal vision links his post-modern idiom to the ethos of the traditional guo hua landscape: the never ending unraveling of visual and imaginative possibilities.

魏青吉的个人视野将其后现代的艺术风格与传统国画领域的精神特质紧密相连，那就是视觉与想象空间的永无边际的自由拓展。

Of Chinese visual expression. His personal vision links his post-modern idiom to the ethos of the traditional guo hua landscape: the never ending unraveling of visual and imaginative possibilities.

魏青吉的个人视野将其后现代的艺术风格与传统国画领域的精神特质紧密相连，那就是视觉与想象空间的永无边际的自由拓展。

In particular, an increase in the amount of nitrogen applied has the effect of increasing the MPP of potash.

特别是氮肥用量的增加具有提高钾肥边际产量的作用。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。