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6月11日 中华人民共和国、波兰民主共和国技术和技术科学合作联合常任委员会在北京举行第二届会议,并签订了两国间的技术和技术科学合作议定书。 7月1日 兰(州)新(疆)铁路黄河大桥正式通车。这是新中国在黄河上修建的第一座大铁桥。 同日 黎(塘)湛(江)铁路通车。 7月9日 我国自制的第一台谷物联合收割机,由北京农业机械厂试制成功。
On June 11, the People's Republic of China and the Joint Permanent Committee on Technical and Technical Scientific Cooperation of the Democratic Republic of Poland held their second session in Beijing and signed a protocol on scientific and technological cooperation between the two countries. July 1 (Lanzhou) New (Xinjiang) Railway Bridge was officially opened to the Yellow River. This is the first large iron bridge newly built by New China on the Yellow River. The same day Li (Tong) Cham (Jiang) Railway opened to traffic. July 9 China's first homemade cereal combine harvester, trial by the Beijing Agricultural Machinery Factory trial success.