1959 How did the former Soviet Union vilify China's nuclear weapons after withdrawing its experts?

At the end of 1959, the former Soviet Union tore up the agreement, withdrew its experts, and even made an ironic remark: "I gave you an atomic bomb, but you can't make it ring." "You can only harvest sand and stones, and you will never grow a mushroom cloud." The United States, a nuclear monopoly power, is also watching our jokes, fearing that China will surpass them in military strength. However, we are indomitable, and we are completely on the road of self-reliance and hard struggle to develop nuclear weapons.