concave face 中文意思是什麼

concave face 解釋
凹面
  • concave : adj 凹的，凹面的 （opp convex）。n 凹，凹線，凹面（物）。 the （spherical） concave 〈詩〉蒼穹。v...
  • face : n 1 臉，面孔；面貌，樣子；面子，威信。2 愁容，苦臉；〈口語〉老面皮，厚臉皮。3 外觀，形勢，局面。4...
  1. The heads of the early wooden clubs were long, narrow and shallow and the face was concave

    早期的木質高爾夫球桿的桿頭長窄而淺並且桿面是凹的。
  2. In this paper, the approximate polygon for irregular shapes, the protruding and concave point of polygon, the direction of polygon, the area of polygon, the single, face to face, frock, combinable packing are talked

    對不規則件的多邊形近似表示、多邊形凸、凹點、多邊形方向、多邊形面積和多邊形單排、對排、雙排以及聯排的預先處理進行了探討。
  3. The utility model discloses a luminescent computer keyboard key, which comprises : a key body ; a concave groove, which is arranged on the top of the key body and is used for embedding phosphor powder display character layer under night light and transparent protection surface layer ; after embedding into said groove, the surface has a transparent protection layer with thickness leveled as top face of the key body

    本實用新型公開了一種夜光計算機鍵盤按鍵，該按鍵結構包括：鍵體；鍵體頂面設置的供鑲嵌熒光粉夜光顯示字元層及透明保護表層的凹槽；具有鑲入所述凹槽后，其表面與鍵體頂面平齊的厚度的透明保護層。
  4. Only two types of irons were used during the feathery ball era, the sand iron with a large concave face and the rut iron which had a very small head

    在羽毛高爾夫球時代，僅有兩種高爾夫球桿被使用，一種是帶有大凹桿面的沙鐵桿，另一種是桿頭很小的
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