在毛主席关于“独立自主、自力更生”、“打破洋框框,走自己工业发展道路”的光辉思想指引下,我国第一台撞击式电磁振动落砂机投产运行已经两年了。生产实践表明:这种类型落砂机具有多快好省的优点,因而得到了推广应用。电磁振动落砂机是个新生事物,各方面都还不成熟,还有许多领域未被认识,许多规律未被掌握。“通过实践而发现真理,又通过实践而证实真理和发展真理。”对于客观事物要有一个比较正确的认识,往往要经过实践、认识,再实践、再认识这样多次地反复才能够完成。为了进一步掌握电磁振动落砂机的内在规 Under Chairman Mao’s glorious ideological guideline of “independence, self-reliance,” “breaking the framework of the Western Region and following the path of our own industrial development,” China’s first impingement type electromagnetic vibrating shakeout machine has been in operation for two years. Production practice shows that: This type of sand machine with the advantages of more speed and better, which has been the promotion and application. Electromagnetic vibration sand machine is a new thing, all aspects are not yet mature, there are many areas are not recognized, many laws have not been mastered. “To discover the truth through practice and to prove the truth and to develop the truth through practice.” To have a more correct understanding of objective things, we often have to go through practice, understanding, and practice before we can realize again and again in this way. In order to further grasp the internal rules of the electromagnetic vibration shakeout machine