Try to translate it:
For a long time people have had the desire to fly in cosmic space, and thanks to the development of modern science and technology, this ideal is gradually being realized. Interplanetary navigation will be the most outstanding achievement of science and technology in the second half of the twentieth century. The fact that it is the socialist Soviet Union that is now leading the way in the conquest of space is a source of particular joy for progressive people all over the world. The people of the Soviet Union are applying their wisdom and hard work to build up an indelible legacy of pioneering the cause of interplanetary navigation! In comparison, the American imperialists are doing very poorly in this respect, and the decayed social system has doomed his catching up in this respect to a chaotic struggle. Today is the time when the east wind overpowers the west wind. Isn't the brilliant achievement of the Soviet Union in interplanetary voyages and the repeated failures of the United States just another example of Chairman Mao's wise assertion? Filled with confidence in the bright future of socialism and communism, we believe that those who will lead mankind into the interstellar and cosmic space will, in the future as now, be the people who have awakened under the guidance of the great Marxism-Leninism.
In April 1962, Qian Xuesen, the father of Chinese aerospace, wrote this preface, and in 1963, the book was officially published. It is the first basic textbook for aerospace majors in China's first higher education institutions, and it systematically introduces all aspects of interplanetary voyage technology, including the power system of the launch vehicle, the design and manufacturing process of the launch vehicle, the flight orbits of the launch vehicle and the interplanetary spaceship, the design principles of the control system and the design process, communication problems and radiation protection in interstellar navigation, design principles for solving the re-entry of spaceships, design problems of interstellar spaceships, and the outlook for interstellar navigation.
In April 2024, I opened this book in a corner of the library, and this text, through 62 years of time, it almost made me cry.