gas-solid chromatography,气固色譜法

gas thermometer,气体溫度計

gas transducer[sensor],气体傳感器

gastrointestinal inner pressure transducer[sensor],胃腸內壓傳感器

gate,閘門

gate-type lowmeter,閘門式流量計

gate valve,閘閥

gateway,网間連接器

gauge block,量塊

gauge circuit,應變計[片]電路

gauge factor,應變計靈敏系數

gauge length,標距長度

gauge pressure,表壓

gauge pressure transducer[sensor],表壓傳感器

gauge resistance,應變計（片）電阻

Gauss optics,高斯光學

Gaussian integration method,高斯求積法

gear reducer,減速器

Geiger type vibrograph,蓋格爾式測振儀

gel chromatography,凝膠色譜法

general-purpose(pressure)gauge,一般壓力表

general purpose strain gauge,常溫應變計

general system theory,一般系統理論

generalization,通用化

generalized modeling,廣義建模

generation function,生成函數

geodetic instrument,大地測量儀器

geologic compass,地質羅盤儀

geological stereometer,地質立体量測儀

geomagnetic electrokinetograph(GEK),地磁場電磁海流計

geometric aberration,几何象差

geometric centre of the dial,度盤几何中心

geostationary meteorological satellite,地球同步气象衛星

germanium thermometer,鍺電阻

Gershum tube,格森管

shost echo,假反射波，假傷波

ghost peak,假峰

glass circle,玻璃電极

global analysis,整体分析

global data base,全球數据庫

global optimum,全局最优

global radiation,總輻射

globe valve,球形閥

glucose enzyme transducer[sensor],　（式）葡萄糖傳感器

glutamate(glutamic acid)microbial transducer[sensor],微生物谷氨酸傳感器

grade,級；等

grade I standard dynamometer,一等標准測力計

grade II standard load calibrating machine,二等標准測力机

grade IIIstandard dynamometer,三等標准測力計

graded-L operation,分級L操作

Grader-L signals(GL),分級L信號

gradient error(of bath),（槽的）梯度誤差

gradient flux-gate magnetometer,磁通門磁力梯度儀

gradient superconducting magnetometer,超導磁力梯度儀

graduated range,刻度范圍

graph search,圖搜索

graph theory,圖論

graphic library,圖形庫

graphic panel,全模擬盤

grating displacement transducer,光柵式位移傳感器

grating monochromator,光柵單色儀

grating spectrograph,光柵攝譜儀

gravimeter,重力儀

gravitational balancing machine,重力式平衡机

gravity,重力

gravity anomaly,重力异常

gravity corer,重力式取樣管

gravity correction,重力修正

gravity gradient survey,重力梯度測量

gravity gradiometer,重力梯度儀

gravity horizontal gradient survey,重力水平梯度測量

gravity nut,重心鉈

gravity platform,重力平台

gravity profile,重力剖面

gravity survey,重力測量

gravity vertical gradient survey,重力垂向梯度測量

gravity-piston type corer,重力活塞式取樣管

graybody,灰体

gray scale,灰度

grid,控制极；柵极

grid-controlled X-ray tube,柵控X射線管

grid lines device,格線裝置

gridnephoscope,柵狀測云器

grip,夾頭

ground electrochemical extractor,地電化學提取法儀器

ground electromagnetic instrument,地面電磁法儀器

ground gamma spectrometer,地面伽瑪能譜儀

ground gravity survey,地面重力測量

ground instrument,地面儀器

ground noise,本底噪聲

ground pulse electromagnetic instrument,地面脈衝電磁儀

ground receivint station,地面接收站

ground visibility,地面能見度

ground X-ray fluorimeter,地面X射線熒光儀

grounded junction,接地端

grounded noise,接地噪聲

groupof an instrument for explosive atmosphere,防爆儀表類別

guarded input,保護輸入