刊头话──提倡争鸣精神在学术研究中坚持百花齐放、百家争鸣的方针，对于科技发展是至关重要的。科学的任务是探求客观真理，而真理是有客观标准的。在客观的科学真理被人们掌握的过程中，特别需要人们从各种不同的方面，经过各种不同的途径进行探索，进行各种不同的实验... The first words ─ ─ promote the spirit of contending in academic research adhere to the policy of letting a hundred flowers bloom, a hundred schools of thought, for the development of science and technology is crucial. The task of science is to seek objective truth, which is an objective criterion. In the process of objective scientific truth being mastered, it is especially necessary for people to explore and carry out various experiments from various aspects and through different channels.