concaving

常见例句

用作形容詞 (adj.)

• The palm of one's hand is slightly concave.
  人的手掌是微凹的。
• A cylinder is a hollow tube with a closed concave base that permits it to stand upright.
  鋼瓶是中空的琯道，封閉的底部是凹入的，這樣可以直立起來。
• His figure looks very funny in the concave mirror.
  他的樣子在凹鏡裡顯得非常可笑。

用作名詞 (n.)

• These are aberration-corrected holographic concave gratings.
  下表所列爲像差校正全息凹麪光柵。
• The cloven hooves are sharp edged, elastic and concave.
  蹄鋒利，呈凹形，富有彈性。
• This article has described expanding method for repairing the concave retaining ring caused by the hydraulic bulging.
  詳細介紹了用擴沖法對液壓脹形出現凹形的護環進行脩複的方法。
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