... scarce coal resources 稀缺煤种 scarce water resources 水资源约束 ; 水资源紧缺 scarce mineral resources 稀缺矿产资源 ...
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今后受全球人口增长、耕地和水资源约束以及气候异常等因素影响，全球粮食供求将长期趋紧。
Future global population growth, arable land and water resources and climate anomalies, such as binding factors, long-term global food supply and demand will be tight.
供给方面，中国的粮食增长受到耕地和水资源约束；需求方面则受到收入增长和人口城市化的推动。
In China, the increase of grain is inhibited by the decreased arable land and water resources while the demands of grain are impulsed by the increased incomes and population urbanization.
保护和利用水资源，实现人与自然和谐相处，需要制度和法律的约束，更需要道德来规范。
Protection and using water resources, to achieve harmony between human being and nature, require institutional and legal constraints, also need to regulate morality.
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