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自从1903年,美国有动力的飞机问世,近一个世纪以来,飞机已逐步成为人类交通运输的主要工具,它改变了人类的时空观,使“地球变得越来越小”。21世纪空中旅行将会有哪些变化,是人们所关心的。本文对此作一简要介绍。
Since 1903, when the U.S.-powered aircraft came into existence, the aircraft has gradually become the main vehicle for human transportation in the past century. It has changed the concept of time and space of mankind so that “the Earth becomes smaller and smaller.” What will be the changes in air travel in the 21st century is something people are concerned about. This article gives a brief introduction.