convexo-concave a.一面凸一面凹的凸凹的...concave perforated plate 凹形多孔板...concavo-concave a.两凹的,两面凹洼的两面凹的...concave a.凹的凹的,凹面的...convexo-concave seal face 凹凸密封面...plano-concave a.(透镜)平凹的...concave function 凹函数...concave slide 凹槽载片...concave grating 凹面光栅...concave lens 凹透镜凹透镜,近视镜片...concave fillet weld 凹形角焊缝...concave line label 凹线标号...concave tree of region 区域凹树...concave filiet weld 凹面堆角熔接...concave line 凹线...concave cutter 凹面铣刀...pseudo-concave function 伪凹函数...
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