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全国铁路除四害科研协作组第四届年会,于1989年4月12～15日在贵州省贵阳市召开。参加会议的有全路有关局卫生处、各级卫生防疫站的领导和专业技术人员共77人。铁道部卫生局领导对大会极为重视,陆文德局长向大会表示热烈祝贺;贵阳铁路分局孙载阳副局长、铁道部第五工程局卫生处钟衍厚同志分别讲了话;北京铁路局卫生处余德全同志作了会议总结;中华预防医学会媒介生物学及控制学会主任委员汪诚
In addition to the fourth annual meeting of the National Science and Technology Cooperation Group of the four national pests, held in Guiyang, Guizhou Province from April 12 to April 15, 1989. Attending the meeting there are all relevant health bureau offices, health and epidemic prevention stations at all levels of leadership and professional and technical personnel a total of 77 people. Leaders of the Ministry of Railways Health Bureau attached great importance to the conference and Director Lu Wende extended his warm congratulation to the conference; Comrade Sun Zaiyang, deputy director of Guiyang Railway Branch and Comrade Zhong Yanhou, the health department of the Fifth Engineering Bureau of the Ministry of Railways spoke respectively respectively; Comrade Yu Dequan of Beijing Railway Administration Summary; Chinese Society of Preventive Medicine Media Biology and Control Society chairman Wang Cheng