中国正在为湖南省长沙的长江项目开发一台直径16.64米的道钻井机. China develops a 16.64m-diameter tunnel boring machine for Yangtze River project in Changsha, Hunan Province.

中国在湖南省长沙市开发了其最大的隧道掘进机，直径为 16.64 米。 China has developed its largest tunnel boring machine, with a diameter of 16.64 meters, in Changsha, Hunan Province. 由中国铁路建筑重工业有限公司和中国铁路第14局集团有限公司创建的145米长、5 000吨的机器将用于长江河下的一个重要隧道项目,连接江苏省南通市和台江市。 Created by China Railway Construction Heavy Industry Co., Ltd. and China Railway 14th Bureau Group Co., Ltd., the 145-meter-long, 5,000-tonne machine will be utilized for a significant tunneling project under the Yangtze River, connecting Nantong and Taicang cities in Jiangsu Province. 这一成就标志着大直径隧道技术的突破。 This achievement marks a breakthrough in large-diameter tunnel technology.