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concave
是什么意思
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concave
凹
concave
凹的，凹面，内弧，凹，凹度
concave
凹陷
concave (hole or depression), site (of a house) too low, lower than the surrounding ground, dent on an object
凹處 ,塌凹
concave bank
凹岸
concave face
凹面
concave filled weld
凹 [ 形 ] 角焊缝
concave or depressed panel
中凹肚
concave perforated plate
凹形多孔板
concave profile
内弧型面
concave side of blade
叶片内弧侧
concave stream bank
凹河岸
concave surface
内弧面，凹面
concave, dent, having a deep hollow in it (e g, a sunken face), sunken (surface)
凹
concave, lower than the surrounding terrain, situated too low, dent
凹陷
concave-convex
凹凸的，新月形的
concave-convex system
凹凸镜系统
concave-grating spectrometer
凹面光栅分光计
