electronic steerable array radar
电子扫描阵列电达

• spherical refracting surface
• spherical roller bearing
• spherical surface
• spherical triangle
• spherical wave
• spherical wave front
• sphericity
• sphericity interferometer
• spherochromatic aberration
• spherochromatism
• sphero-cyindrical lens
• spherocylinder spectacle lens
• spheroidal function
• spheroidal-mirror
• spheroidal particle
• spherometry
• spheroscope
• spherotoric lenticular
• spider
• spiegel(eisen)
• spigot
• spike
• spike filter
• spikeless
• spike potential