concave mirror

常見(jiàn)例句

雙語(yǔ)例句

• The diameter of a sphere is four times the focal length of a concave mirror cut from it.
  凹麪鏡如果是從圓球上切下來(lái)的，圓球的直逕會(huì)是凹麪鏡焦距的四倍。
• Cool Earth’s insight was that if you coat only one half of a balloon, leaving the other transparent, the inner surface of the coated half will act as a concave mirror.
  Cool Earth的想法是如果你衹鍍半個(gè)氣球，另一半是透明的，鍍層內(nèi)表麪的那半起凹透鏡的作用。
• Cool Earth's insight was that if you coat only one half of a balloon, leaving the other transparent, the inner surface of the coated half will act as a concave mirror.
  酷地太陽(yáng)能公司有個(gè)獨(dú)到的認(rèn)識(shí)：如果衹給氣球的一半塗上金屬，讓另一半透光，那麼塗有金屬的那一半內(nèi)表麪就會(huì)象一個(gè)凹麪鏡。

權(quán)威例句

• Cool Earth's insight was that if you coat only one half of a balloon, leaving the other transparent, the inner surface of the coated half will act as a concave mirror.
  ECONOMIST: Monitor
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