进入21世纪后,世界各国开始尝试各种政府科技投入管理和使用的新模式,加大政府科技资金投入,确保科技政策的支持和创新产出的数量。经过不断地探索,各国在科技投入和使用方面取得了相当的成绩,世界各国在R&D经费投入方面出现了许多新变化。 Since entering the 21st century, various countries in the world have begun to experiment with various new modes of government investment in science and technology. They have also increased government funding for science and technology to ensure the support of science and technology policies and the amount of innovative output. After continuous exploration, all countries have made considerable achievements in science and technology investment and use, and many new changes have taken place in the R & D spending all over the world.