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Toys and games

1) Devices that are used exclusively for recreation and play. Toys are most often used with children and pets and as a medium of education and development. Toys are not always obvious in their nature. A simple bottle can be considered a toy if an individual uses it for recreational use. 2) Games are structural activities used for physical or psychological education. In most cases, games are recreation. However, games can also be considered work. For example, a professional soccer game is a career to the participants.

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市場力量

Economy; Economics

從買家和賣家在一個市場,而不是那些來從政府規劃師或規管壓力的簡寫。

市場失靈

Economy; Economics

當一個市場留給自己並不有效配置資源。干預主義政治家通常聲稱市場失靈,來證明他們的發言。經濟學家確定了四個主要的排序或市場失敗的原因。*市場濫用權力,每當單一買方或賣方可能發生可以施加重大影響價格或輸出 (請參閱壟斷和壟斷權,權)。*外部性 — — 當市場不會不考慮到經濟活動對外界的影響。為例,市場可能會忽略強加給外人的污染環境的一家公司的成本。*公共物品,例 ...

堤防工程

Environment; Environment statistics

可以作為屏障防止漏油蔓延的矮牆。

混合動力

Environment; Environment statistics

機體產生的兩個與不同的植物或動物之間的交叉。

土地使用權

Environment; Environment statistics

權的獨家佔有和使用的土地的指定區域。

監測站

Environment; Environment statistics

測量排放或空氣中的污染物的含量的設施。

清糞

Environment; Environment statistics

去除污泥的沉澱池、 化糞池等。

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