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aperture

C2 noun

aperture /ˈæp.ɚˌt͡ʃʊɹ/ nghĩa là lỗ hổng, khe hở

Các nghĩa

  1. lỗ hổng, khe hở

    A small or narrow opening, gap, slit, or hole.

    an aperture in a wall

    The door was opened — ‘on the chain.’ The old lady peered at us through an aperture of about six inches.

  2. khẩu độ

    A hole which restricts the diameter of the lightpath through one plane in an optical system.

  3. đường kính khẩu độ

    The diameter of such a hole which restricts the width of the lightpath through the whole system. For a telescope, this is the diameter of the objective lens.

    This telescope has a 100 cm aperture.

  4. ăng-ten chảo

    The (typically) large-diameter antenna used for receiving and transmitting radio frequency energy containing the data used in communication satellites, especially in the geostationary belt. For a comsat, this is typically a large reflective dish antenna; sometimes called an array.

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