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quadrat    
n. 嵌块

嵌块

Quadrat \Quad"rat\, n. [F. quadrat, cadrat. See {Quadrate}.]
1. (Print.) A block of type metal lower than the letters, --
used in spacing and in blank lines. [Abbrev. quad.]
[1913 Webster]

2. An old instrument used for taking altitudes; -- called
also {geometrical square}, and {line of shadows}.
[1913 Webster]


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  • Quadrat - Wikipedia
    A quadrat is a frame used in ecology, geography, and biology to isolate a standard unit of area for study of the distribution of an item over a large area
  • QUADRAT Definition Meaning - Merriam-Webster
    The meaning of QUADRAT is quad
  • QUADRAT Definition Meaning | Dictionary. com
    For immobile organisms such as plants, or for very small and slow-moving organisms, a quadrat may be used From Textbooks • Sep 6, 2018
  • Quadrat Sampling Simulator: Interactive Ecology Population Estimation . . .
    In physical fieldwork, a quadrat is literally just a square frame, usually made of PVC pipe, wood, or metal It provides a standardized boundary so scientists know exactly what area they are analyzing
  • Quadratic formula - Wikipedia
    In elementary algebra, the quadratic formula is a closed-form expression describing the solutions of a quadratic equation Other ways of solving quadratic equations, such as completing the square, yield the same solutions
  • How to use a quadrat - NHBS
    What is a quadrat? A quadrat is a square frame, usually constructed from wire or plastic-coated wire, although they can be made from any sturdy material Most commonly they measure 50cm x 50cm (i e 0 25m2), and may have further internal divisions to create either 25 squares each measuring 10cm x 10cm or 100 squares measuring 5cm x 5cm
  • What Are Quadrats and How Are They Used in Biology?
    A quadrat is a frame, typically square or rectangular, designed to enclose a specific, known area for study While often physical frames made from materials like metal, plastic, or wood, they can also be defined virtually or as designated areas within a larger space
  • QUADRAT definition and meaning | Collins English Dictionary
    2 meanings: 1 ecology an area of vegetation, often one square metre, marked out for study of the plants in the surrounding Click for more definitions
  • What Is a Quadrat and How Is It Used in Ecology?
    The quadrat is a fundamental tool that standardizes measurements by delineating a specific portion of the study site This method allows researchers to make reliable estimates about the entire population without counting every organism
  • What does Quadrat mean? - Definitions. net
    A quadrat is a frame, traditionally square, used in ecology, geography and biology to isolate a standard unit of area for study of the distribution of an item over a large area





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