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hydrometer    音標拼音: [hɑɪdr'ɑmətɚ]
n. 液體比重計,浮秤

液體比重計,浮秤

hydrometer
n 1: a measuring instrument for determining the specific gravity
of a liquid or solid [synonym: {hydrometer}, {gravimeter}]

Hydrometer \Hy*drom"e*ter\, n. [Hydro-, 1 -meter: cf. F.
hydrom[`e]tre.]
1. (Physics) An instrument for determining the specific
gravities of liquids, and thence the strength spirituous
liquors, saline solutions, etc.
[1913 Webster]

Note: It is usually made of glass with a graduated stem, and
indicates the specific gravity of a liquid by the depth
to which it sinks in it, the zero of the scale marking
the depth to which it sinks in pure water. Extra
weights are sometimes used to adapt the scale to
liquids of different densities.
[1913 Webster]

2. An instrument, variously constructed, used for measuring
the velocity or discharge of water, as in rivers, from
reservoirs, etc., and called by various specific names
according to its construction or use, as {tachometer},
{rheometer}, {hydrometer}, {pendulum}, etc.; a current
gauge. Hydrometric

HYDROMETER. An instrument for measuring the density of fluids; being
immersed in fluids, as in water, brine, beer, brandy, &c., it determines the
proportion of their densities, or their specific gravities, and thence their
qualities.
2. By, the Act of Congress of January 12, 1825, 3 Story's' Laws U. S.
1976, the secretary of the treasury is authorized, under the direction of
the president of the United States, to adopt and substitute such hydrometer
as he may deem best calculated to promote the public interest, in lieu of
that now prescribed by law, for the purpose of ascertaining the proof of
liquors; and that after such adoption and substitution, the duties imposed
by law upon distilled spirits shall be levied, collected and paid, according
to the proof ascertained by any hydrometer so substituted and adopted.

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英文字典中文字典相關資料:
  • Hydrometer - Wikipedia
    A hydrometer or lactometer is an instrument used for measuring density or relative density of liquids based on the concept of buoyancy They are typically calibrated and graduated with one or more scales such as specific gravity
  • Amazon. com: Hydrometer
    Shop hydrometer kits with test jars and cleaning supplies Everything needed for accurate measurements
  • Hydrometer | Specific Gravity, Salinity Density | Britannica
    hydrometer, device for measuring some characteristics of a liquid, such as its density (weight per unit volume) or specific gravity (weight per unit volume compared with water)
  • What Do Hydrometers Test and How Do They Work?
    A hydrometer is an instrument designed to measure the density or relative density of various liquid substances Typically made of glass, it includes a weighted bulb at the bottom and a slender stem with graduated markings
  • How to Use and Read a Hydrometer - Grainger KnowHow
    A hydrometer is an instrument used to determine specific gravity It operates based on the Archimedes principle that a solid body displaces its own weight within a liquid in which it floats
  • Hydrometers | Fisher Scientific
    Browse a full range of Hydrometers products from leading suppliers Shop now at Fisher Scientific for all of your scientific needs
  • How to Use and Read a Hydrometer: Ultimate Guide - Linquip
    Here is all you need to learn how to use and read a hydrometer for your home or industrial applications to measure the specific gravity of liquids
  • How to Read a Hydrometer for Home Brewing: Easy Guide - wikiHow
    A hydrometer is a measurement tool used to test the density of a liquid Brewers use hydrometers to track the progress of beer or other fermented drinks, since the liquid's density decreases as yeast converts sugar into alcohol
  • Hydrometers - Thomas Scientific
    Explore our range today to find the perfect hydrometer and achieve efficient and accurate measurements Options available include a glass hydrometer, calibrated precision, or a baume hydrometer to suit a range of experimental needs chemical test kits can also be found at Thomas Scientific
  • Hydrometers | McMaster-Carr
    Also known as hydrometers, these measure the density of a liquid compared to the density of water Pour your liquid into a tall container and immerse the density meter into the liquid until it floats Take the reading where the surface of the liquid touches the measurement unit on the meter





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