male and female face
... 凸凹地形 knob-and-basin topography 凸凹面 male and female face 凸凹透镜 meniscus ...
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凸凹面法兰 FF
地面凹凸不平 ground relief
板面凹凸不平 center fullness
凸凹分型面 matched parting
袋面凹凸不平 tented pocket
前筒面凹凸不平 tented front placket
凹凸棒面粘土 attapulgite
凸凹弧面琢型 hallow cabochon
半凸半凹面的 convexo-concave
利用此方法，用较少的刀具规格，可以将弧齿锥齿轮大轮的凸凹面一次性切出，提高制齿效率。
By use of the method, the bigger one"s convex and concave of spiral bevel gears can be cut out one-through with few format of cutters, which can improve the efficiency of processing the gears."
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