几年来,我校在党的领导下广泛地开展了科技活动。活动內容有:电池加工、制蓝墨水,無綫电收發报、矿石收音机、航模、蒸馏、超声波、气象、植物嫁接等45項。目前,全校1765个兒童,参加活动的达95％;絕大部分儿童已經初步掌握了無綫电、矿石收音机的原理,学会了安装矿石收音机,使用超声波,收發簡单的無綫电电报,制造飞机模型,观察气 In recent years, our school has carried out extensive scientific and technological activities under the leadership of the party. Activities include: battery processing, blue ink, radio transceiver, ore radio, model aircraft, distillation, ultrasound, weather, plant grafting 45. At present, there are 1,765 children attending the school, up to 95% of the participants. Most children have initially mastered the principle of radios and ore radios, learned to install ore radios, use ultrasonic waves, send and receive simple radios, and make aircraft models , Observe the gas