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词汇 cross-sectional
释义

Definition of cross-sectional in English:

cross-sectional

adjectivekrɒsˈsɛkʃ(ə)n(ə)l

  • 1Exposed by making a straight cut through a solid form, especially at right angles to an axis.

    the cross-sectional area of the wood
    Example sentencesExamples
    • His installation piece, Dig, edges an open stairwell with a thick cross-sectional layer of faux topsoil and plants, as if the earth were reclaiming the site.
    • I concluded that the building's smallest cross-sectional area would have to be located just upwind of the living area and not at the exit opening.
    • The many technical difficulties of increasing speed have been overcome by reducing the cross-sectional area of trains to decrease aerodynamic resistance and by reducing the weight of the vehicles.
    • Since the sample isn't literally being sliced, we can see cross-sectional views of living cells, tissues, and organisms without harm.
    • CAT scan is a computerized x-ray procedure that produces cross-sectional images of the human body.
    • The cross-sectional area, or volume, of bone increases with age and training.
    • The angled cross-sectional profile of the building appears to bellow or expand outwards.
    • The 3D model of the existing structure makes it easy to determine cross-sectional dimensions at any point, in order to highlight areas where additional supports are required.
    • Fat thickness was estimated using the cross-sectional image.
    • The text includes a cross-sectional image of a female fetus at 65 days of gestation.

  • 2Constituting a typical or representative sample of a larger group.

    a cross-sectional survey of high school students
    Example sentencesExamples
    • The difficulty of evaluating this argument is finding enough cross-sectional data to make valid comparisons.
    • The telephone survey used a cross-sectional sample of random-digit telephone listings to identify eligible subjects.
    • Cross-sectional comparisons of school district performance should be possible.
    • The data for this analysis come from a random sample, cross-sectional survey of Iowa soybean fields.
    • This study only examined cross-sectional differences among firms.
    • These values are reasonable considering that the data used in the analysis are cross-sectional.
    • The authors estimate a cross-sectional wage equation for a set of developing countries for the 1973-1990 period.
    • Their work uses cross-sectional county-level data to measure the impact that the concealed weapon law has on violent crime.
    • A second issue of concern when using cross-sectional data is sample size.
    • The analysis proposed is a cross-sectional study, where the measurements of the independent variables are all in the same period of time (1998-1999).

Definition of cross-sectional in US English:

cross-sectional

adjectiveˌkrôsˈsekSH(ə)n(ə)l

  • 1Exposed by making a straight cut through a solid form, especially at right angles to an axis.

    the cross-sectional area of the wood
    Example sentencesExamples
    • The many technical difficulties of increasing speed have been overcome by reducing the cross-sectional area of trains to decrease aerodynamic resistance and by reducing the weight of the vehicles.
    • His installation piece, Dig, edges an open stairwell with a thick cross-sectional layer of faux topsoil and plants, as if the earth were reclaiming the site.
    • CAT scan is a computerized x-ray procedure that produces cross-sectional images of the human body.
    • The cross-sectional area, or volume, of bone increases with age and training.
    • Since the sample isn't literally being sliced, we can see cross-sectional views of living cells, tissues, and organisms without harm.
    • The 3D model of the existing structure makes it easy to determine cross-sectional dimensions at any point, in order to highlight areas where additional supports are required.
    • Fat thickness was estimated using the cross-sectional image.
    • I concluded that the building's smallest cross-sectional area would have to be located just upwind of the living area and not at the exit opening.
    • The text includes a cross-sectional image of a female fetus at 65 days of gestation.
    • The angled cross-sectional profile of the building appears to bellow or expand outwards.

  • 2Constituting a typical or representative sample of a larger group.

    a cross-sectional survey of high school students
    Example sentencesExamples
    • These values are reasonable considering that the data used in the analysis are cross-sectional.
    • A second issue of concern when using cross-sectional data is sample size.
    • The difficulty of evaluating this argument is finding enough cross-sectional data to make valid comparisons.
    • The analysis proposed is a cross-sectional study, where the measurements of the independent variables are all in the same period of time (1998-1999).
    • Their work uses cross-sectional county-level data to measure the impact that the concealed weapon law has on violent crime.
    • This study only examined cross-sectional differences among firms.
    • Cross-sectional comparisons of school district performance should be possible.
    • The data for this analysis come from a random sample, cross-sectional survey of Iowa soybean fields.
    • The telephone survey used a cross-sectional sample of random-digit telephone listings to identify eligible subjects.
    • The authors estimate a cross-sectional wage equation for a set of developing countries for the 1973-1990 period.
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