...Transportation equipment, a representative Canadian industrial product, was essential for the country's vast territory, and the manufacture of agricultural machinery, mining equipment, forestry equipment, forestry product processing equipment, and marine equipment used in agriculture, mining, forestry, and fishing has all been carried out in parallel with resource development. Canada's proud CANDU reactors (Canadian-type heavy water reactors) are also a good example of an industry that was developed with the backing of abundant uranium reserves. Another characteristic of the Canadian economy, which is dependent on resources, is its extremely high dependence on trade and foreign capital, and its high dependence on the United States in both areas. From [Nuclear Power]…Heavy water, unlike ordinary water, has a weak neutron absorption property, so natural uranium can be used in heavy water reactors. However, in order to reduce the loss of expensive heavy water, a reactor was developed in Canada that separates the heavy water used as a moderator and coolant, and uses pressure tubes for the coolant passages, which became the prototype for the so-called CANDU reactor. Canada promoted heavy water reactors because of the abundant uranium and water resources in the country. … *Some of the terminology used to refer to "CANDU reactors" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…また,カナダの代表的な工業製品である輸送機器は,広大な国土には不可欠のものであったし,農業,鉱業,林業および漁業に使用される農機具,採鉱機器,林業機器,林産加工機器,海洋機器の製造は,いずれも資源開発と並行して進められてきた。また,カナダが誇るCANDU炉(カナダ型重水炉)も豊富なウラン埋蔵量に裏打ちされて開発された好例である。 資源に依存したカナダ経済のもう一つの特徴は,貿易と外国資本への依存が著しく高いこと,しかもその両方の分野で対米依存が高いことである。… 【原子力】より…重水は,普通の水とちがって中性子を吸収する性質が弱いので,重水炉では天然ウランを用いることができる。しかし,高価な重水の損失を低減するため,減速材,冷却材としての重水をそれぞれ区分し,冷却材流路を圧力管型とする原子炉がカナダで開発され,いわゆるCANDU炉の原型となった。カナダが重水炉を推進した背景には,国内に豊富なウラン資源と水資源をもつという事情があった。… ※「CANDU 炉」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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