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联合国技术合作发展部（UNDTCD）钻探专家杰拉尔德·诺因（GERALD NoyEN）（荷兰籍）应邀于五月廿八日至六月十七日来我国进行短期咨询服务。诺因在华期间曾赴北京地质局一○一队、辽宁第六地质队、河北第五地质队的七个钻探现场了解我国钻探现状，并至天津探矿厂和北京钻探工具厂了解水井钻机和金刚石钻头生产情况。曾在北京、大连、迁西举行了四次技术座谈，就绳索取心钻具、金刚石钻头设计、钻孔弯曲及定向钻进、潜孔锤、砂金矿钻进及钻探设备等技术问题进行了交流，参加者约200人次。诺因在参观现场时，看得很认真，询问也很仔细，
GERALD NoyEN (Dutch), UNDTCD drilling specialist, was invited to come to China for short-term advisory services from May 28 to June 17. Connaught during his stay in China, he visited the 110 drilling teams of Beijing Bureau of Geology, the Sixth Geological Team of Liaoning Province and the Fifth Geological Team of Hebei Province to understand the current status of drilling in China and to visit Tianjin Prospecting Factory and Beijing Drilling Tool Factory to learn about drilling rigs and Diamond drill production. He held four technical seminars in Beijing, Dalian and Qianxi on technical issues such as cord coring, diamond bit design, drilling and bending, directional drilling, down-hole hammer, sand and gold drilling and drilling equipment Exchange, about 200 participants. Connaught on the visit to the scene, very seriously, asked very carefully,