international standard atmosphere
国际标准大气压

• Gotar lens
• gradation
• grad criteria
• grade
• graded coating
• graded deposit
• graded index
• graded-index glass fiber
• graded-index potical fiber
• graded-index potical waveguide
• graded refractive index
• grade-index
• grade of fit
• gradient
• gradient edge enhancement
• gradienter
• gradient neutral density filter
• gradient refractive index
• gradient spectrum
• gradient vector
• gradual approximation
• gradual cut filter
• graduated circle
• graduated ring
• graduated scale