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美国标准局1972年装了一台大型材料试验机,其压力为5340吨(1200万磅),拉力为2670吨(600万磅),据称是世界上最大的。这台试验机用于试验大型结构件,也用于大型测力机的检定。机器高30.8米(101呎),其中7米(23呎)是在地面以下这台机器安装在美国标准局马里兰州盖诺斯堡新建的研究室内一座专门为它设计的建筑物内。作压缩试验的垂直空间有18.3米(60呎),作拉力试验的试件的长度可达16.8米(55呎),长达27.4米(90
The United States Bureau of Standards installed a large material testing machine in 1972 with a pressure of 5,340 tons (12 million pounds) and a pull force of 2,670 tons (6 million pounds), allegedly the largest in the world. This test machine for testing large structures, but also for large test machine. The machine is 30.8 meters (101 feet) high, 7 meters (23 feet) of which is below ground level. The machine is installed in a specially designed building in a newly built research facility in Gainesburg, Maryland, United States Bureau of Standards. The vertical space for compression test is 18.3 meters (60 feet) and the tensile test specimen length is up to 16.8 meters (55 feet) and up to 27.4 meters (90 feet)