新技术降低了传播费用并撤除了绝大多数的入门障碍。
New technology has cut costs and demolished most barriers to entry.
世界各国如何能够最有效地开发、演示、传播这些新技术？
How can the world most effectively develop, demonstrate, and then spread these new technologies?
世界各国如何能够最有效地开发、演示、传播这些新技术？
How can the world most effectively develop, demonstrate, and then spread these new technologies?
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