This paper describes the automated Burris metal zero-length spring gravity meter produced by the Zero-Length Spring Corporation, USA, which is an upgrade of LaCoste & Romberg land meters.
美国零长弹簧公司（Zero-LengthSpring 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。
To reduce the influence of temperature on the parameter of gravity meter and insure the observation precision of the high precision gravity meter, a high precision thermostat is developed.
为降低温度效应对重力仪参数的影响，保证高精度重力仪的观测精度，研制了一种高精度的温度控制系统。
To reduce the influence of temperature on the parameter of gravity meter and insure the observation precision of the high precision gravity meter, a high precision thermostat is developed.
为降低温度效应对重力仪参数的影响，保证高精度重力仪的观测精度，研制了一种高精度的温度控制系统。
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