acquisition
(1)探测，发现
(2)捕获、拦截
(3)目标显示

• guide track
• guide wavelength
• guide way
• guiding laser beam
• guiding microscope
• guiding ocular
• guiding prism
• Guinier focusing camera
• gum
• gun
• gun camera
• gun-laying reticle
• Gunn effect oscillator
• gunn errer
• gun sight
• gun-sight aiming point camera
• guy wire
• gypsum
• gyration
• gyrator
• gyre
• gyro
• gyrobearing
• gyro black assembly
• gyroclinometer