Conservation

(noun.) the preservation and careful management of the environment and of natural resources.

(noun.) (physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations.

(noun.) an occurrence of improvement by virtue of preventing loss or injury or other change.

卡洛斯录入

• They had seen the Roosevelt influence adding to the resources of life--irrigation, and waterways, conservation, the Panama Canal, the country life movement. 沃尔特·李普曼. 政治序论.
• The conservation of the forest means the conservation of our waterways, whether these be used for transportation or as sources of drinking water. 伯莎M.克拉克. 科学通论.
• Everything he has done has been aimed at the conservation of energy, the contraction of space, the intensification of culture. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Conservation had the virtue of arising out of a provident statesmanship, but its problems were largely technical. 沃尔特·李普曼. 政治序论.
• To Plato experience meant habituation, or the conservation of the net product of a lot of past chance trials. 约翰·杜威. 民主与教育.
• To say that it uses them is to say that it turns them into means of its own conservation. 约翰·杜威. 民主与教育.
• It does no t really contradict, as some thought might be the case, the principle of the conservation of energy. 李贝. 西洋科学史.
• Correct education could not come into existence until an ideal state existed, and after that education would be devoted simply to its conservation. 约翰·杜威. 民主与教育.
• One important and characteristic feature of the present age is the conservation of waste in perishable foodstuffs. Edward W. Byrn. 十九世纪发明进展.
• The principle just stated embodies one of the fundamental laws of science, called the law of the _conservation of matter_. 伯莎M.克拉克. 科学通论.
• Nature has wisely endowed man with nerves of sensation as danger signals for the conservation of life. Edward W. Byrn. 十九世纪发明进展.
• This comes nearer to overthrowing the doctrine of the conservation of energy, said he, than anything I ever saw. 鲁伯特·萨金特·荷兰. 历史性发明.
• What Roosevelt did in the conservation movement was typical of the statesman's work. 沃尔特·李普曼. 政治序论.

录入:勒达