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  2. Crown-rump length - Wikipedia

    en.wikipedia.org/wiki/Crown-rump_length

    An ultrasound showing an embryo measured to have a crown-rump length of 1.67 cm and estimated to have a gestational age of 8 weeks and 1 day. Crown-rump length (CRL) is the measurement of the length of human embryos and fetuses from the top of the head (crown) to the bottom of the buttocks (rump).

  3. Brussels South Charleroi Airport - Wikipedia

    en.wikipedia.org/wiki/Brussels_South_Charleroi...

    On 4 April 1978, a Boeing 737 OO-SDH operated on a training flight with an instructor and two co-pilot students. Both students were going to practice ILS approaches to runway 25 at Charleroi-Gosselies Airport (CRL) followed by a touch-and-go. The initial six approaches were uneventful. The students then changed seats.

  4. Anthropometric measurement of the developing fetus - Wikipedia

    en.wikipedia.org/wiki/Anthropometric_measurement...

    For decades, the topic of question pertaining to crown-rump length (CR), crown-heel length (CH), head circumference (HC) with respect to the body weight of human fetus at different time periods of gestation has baffled many developmental researchers and biostatisticians. These biological variations are all based on linear curves based on human ...

  5. Certificate revocation list - Wikipedia

    en.wikipedia.org/wiki/Certificate_revocation_list

    CRL for a revoked cert of Verisign CA. There are two different states of revocation defined in RFC 5280: Revoked A certificate is irreversibly revoked if, for example, it is discovered that the certificate authority (CA) had improperly issued a certificate, or if a private-key is thought to have been compromised.

  6. List of medical abbreviations: C - Wikipedia

    en.wikipedia.org/wiki/List_of_medical...

    Sortable table Abbreviation Meaning c̅ (c with an overbar) with (from Latin cum) means with : C: cytosine cervical vertebrae: C1: atlas – first cervical vertebra of the spine : C2 ...

  7. Complete Response Letter - Wikipedia

    en.wikipedia.org/wiki/Complete_Response_Letter

    In United States pharmaceutical regulatory practice, a Complete Response Letter (CRL), or more rarely, a 314.110 letter, is a regulatory action by the Food and Drug Administration in response to a New Drug Application, Amended New Drug Application or Biologics License Application, indicating that the application will not be approved in its present form. [1]

  8. Compound refractive lens - Wikipedia

    en.wikipedia.org/wiki/Compound_refractive_lens

    The CRL gets its reasonably short focal length, on the order of meters, by using many lenses in series, hence reducing the curvatures of each lens to practical levels. Absorption in the lens is still a challenge, however, and lenses are usually made from low-atomic-number materials such as aluminium , beryllium , or lithium .

  9. Table of keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

    Alt+Print Screen : Ctrl+Alt+Show Windows then move mouse and click Save screenshot of arbitrary area as file ⇧ Shift+⌘ Cmd+4 then click+drag mouse over required area: Print Screen click+drag mouse over required area, then ↵ Enter : Ctrl+⇧ Shift+Show Windows then click+drag mouse over required area