This paper describes the automated Burris metal zero-lengthspring gravity meter produced by the Zero-LengthSpring Corporation, USA, which is an upgrade of LaCoste & Romberg land meters.
美国零长弹簧公司(Zero-Length Spring Corporation)生产的贝尔雷斯(Burris)金属零长弹簧自动重力仪,是拉科斯特-隆贝格(LaCoste&Romberg)陆地重力仪的升级产品和重大改进。