然而，我国科技投入的总量和强度仍显不足，投入结构不尽合理，科技基础条件薄弱。
However the total amount and intensity of the input to the science and technology is still not enough, the structure is not reasonable, and the basic condition of science and technology is poor.
中国在增加科技投入的总量的同时，更要对科技投入的结构、科技资源的优化配置和使用效率给予足够的重视。
It is needed to not only pay attention to the gross but also to the structure and equipment and efficiency of the science and technology investment.
警告信的签署者中有鲍勃·约翰逊，他是“生态足迹”概念的发起人，此概念衡量的是维持一个特定生活方式所需的环境投入总量。
Among the signatories of the warning was Bob Johnson, the originator of the "ecological footprint" concept, which measures the total amount of environmental input needed to maintain a given lifestyle.
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