geomagnetic electrokinetograph(GEK),地磁场电磁海流计
geometric aberration,几何象差
geometric centre of the dial,度盘几何中心
geostationary meteorological satellite,地球同步气象卫星
germanium thermometer,锗电阻
Gershum tube,格森管
shost echo,假反射波，假伤波
ghost peak,假峰
glass circle,玻璃电极
global analysis,整体分析
global data base,全球数据库
global optimum,全局最优
global radiation,总辐射
globe valve,球形阀
glucose enzyme transducer[sensor],酶（式）葡萄糖传感器
glutamate(glutamic acid)microbial transducer[sensor],微生物谷氨酸传感器
grade,级；等
grade I standard dynamometer,一等标准测力计
grade II standard load calibrating machine,二等标准测力机
grade IIIstandard dynamometer,三等标准测力计
graded-L operation,分级L操作
Grader-L signals(GL),分级L信号
gradient error(of bath),（槽的）梯度误差
gradient flux-gate magnetometer,磁通门磁力梯度仪
gradient superconducting magnetometer,超导磁力梯度仪
graduated range,刻度范围
graph search,图搜索
graph theory,图论
graphic library,图形库
graphic panel,全模拟盘
grating displacement transducer,光栅式位移传感器
grating monochromator,光栅单色仪
grating spectrograph,光栅摄谱仪
gravimeter,重力仪
gravitational balancing machine,重力式平衡机
gravity,重力
gravity anomaly,重力异常
gravity corer,重力式取样管
gravity correction,重力修正
gravity gradient survey,重力梯度测量
gravity gradiometer,重力梯度仪
gravity horizontal gradient survey,重力水平梯度测量
gravity nut,重心铊
gravity platform,重力平台
gravity profile,重力剖面
gravity survey,重力测量
gravity vertical gradient survey,重力垂向梯度测量
gravity-piston type corer,重力活塞式取样管
graybody,灰体
gray scale,灰度
grid,控制极；栅极
grid-controlled X-ray tube,栅控X射线管
grid lines device,格线装置
gridnephoscope,栅状测云器
grip,夹头
ground electrochemical extractor,地电化学提取法仪器
ground electromagnetic instrument,地面电磁法仪器
ground gamma spectrometer,地面伽玛能谱仪
ground gravity survey,地面重力测量
ground instrument,地面仪器
ground noise,本底噪声
ground pulse electromagnetic instrument,地面脉冲电磁仪
ground receivint station,地面接收站
ground visibility,地面能见度
ground X-ray fluorimeter,地面X射线荧光仪
grounded junction,接地端
grounded noise,接地噪声
groupof an instrument for explosive atmosphere,防爆仪表类别
guarded input,保护输入
guidance system,导向系统
gyro balancing machine,陀螺测斜仪
gyro-theodolite,陀螺经纬仪