concave 英 [kɒnˈkeɪv] 　 美 [kɑnˈkeɪv]

concave

concave　 英 [kɒnˈkeɪv] 美 [kɑnˈkeɪv]

adj. 凹的，凹面的　 n. 凹面　 vt. 使成凹形　

名词复数:concaves　

The palm of one's hand is slightly concave.　人的手掌是微凹的。
Because there is no abrasion between the concave and convex, the nut is reusable.　因为凹面与凸面没有磨损，螺母可以重复使用。

  • Concave describes an inward curve; its opposite, convex, describes a curve that bulges outward. They are used to describe gentle, subtle curves, like the kinds found in mirrors or lenses.
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  • adj. 凹的，凹面的
  • n. 凹面
  • vt. 使成凹形

  • 1. The palm of one's hand is slightly concave.

    人的手掌是微凹的。

  • 2. Because there is no abrasion between the concave and convex, the nut is reusable.

    因为凹面与凸面没有磨损，螺母可以重复使用。

  • 3. By extracting water from the detector's chamber, the detector surface becomes a concave hemisphere.

    通过从检测器的舱室获取水分，检测器表面成为凹半球。

  • concave (adj.) "incurved," early 15c., from Old French concave (14c.) or directly from Latin concavus "hollow, arched, vaulted, curved," from con-, here probably an intensive prefix (see con-), + cavus "hollow" (from PIE root *keue- "to swell," also "vault, hole").
con·cave / kɒnˈkeɪv ; NAmE kɑːnˈkeɪv ; ˈkɑːnkeɪv / adjective (of an outline or a surface 轮廓或表面 ) curving in 凹的；凹面的 ◆ a concave lens/mirror 凹透镜；凹镜 OPP convex con·cave / kɒnˈkeɪv ; NAmE kɑːnˈkeɪv ; ˈkɑːnkeɪv /
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词频排名 adj:21384
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