Environmental security has a focus the society. It is quite significant to study of environmental security.

环境安全问题已成为当今人们关注的热点问题, 对环境安全问题的研究意义重大.

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Rare earths ( RE ) in agriculture has great economic benefits, but environmental security problems emerge in the longrun.

稀土农用给中国农业带来巨大经济效益, 但环境安全问题也随之产生.

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