peak-peak excursion
(1)峰-峰漂移
(2)峰-峰幅度

• gear sprial
• gear testing machine
• gear thickness gauge
• gear tooth venier caliper
• gear-type coupling
• gear wheel
• gear wheel shaft
• gear wheel tester
• gegenschein-zodiacal light photometer
• Geiger counter
• Geiger-mueller counter
• Geiger Mueller region
• Geiger Mueller threshold
• Geiger-Muller ballast
• Geiger-Muller coungter
• geigerscope
• geissler tube
• gel
• gelatine
• gelatine filter
• gel layer
• gelogy
• Ge mesa transistor
• gemoetrical error
• genal drawing