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全国(北方片)渠道防渗防冻害学术交流会,于一九八五年十一月十二日至十九日在甘肃省酒泉地区举行。全国渠道防渗科技情报网北方片的网员单位与其它有关单位派员参加了会议。
The National (North) Channel Anti-seepage Antifreeze Academic Symposium was held in Jiuquan, Gansu Province from November 12 to January 19, 1985. National channel impermeable science and technology intelligence network north of the network of units and other units sent to attend the meeting.