| 词汇 | graduated-cylinder |
| 释义 | graduated cylinder noun[ C ] USuk /ˌɡræd.ju.eɪ.tɪd ˈsɪl.ɪn.dər/ us /ˌɡræd.ju.eɪ.t̬ɪd ˈsɪl.ɪn.dɚ/(UKmeasuring cylinder) a glass cylinder that has lines printed on the side of it showing how much it contains, used by scientists: （实验用）量杯（标有刻度） Pour exactly 100 ml of sulphuric acid into a graduated cylinder.向量杯中准确注入100毫升硫酸。 imagenavi/GettyImages Laboratory equipment aspirator bell jar bubble chamber Buchner funnel Bunsen burner calorimeter condenser evaporating dish flask litmus microscope particle accelerator photometer pipette retort stand scope siphon synchrotron test tube transducer graduated cylinder | American Dictionarygraduated cylinder noun[ C ] us/ˈɡrædʒ·uˌeɪ·t̬ɪd ˈsɪl·ən·dər/ a glass tube that is used in science laboratories to measure liquids Examples of graduated cylindergraduated cylinder After two rainstorm events, we collected the water in the buckets of each catch-basin and measured the volume of water collected in a graduatedcylinder. One method is to put the sample in a water-filled graduatedcylinder and read off how much water it displaces. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, a graduatedcylinder filled to a definite mark prepares a certain volume of the liquid for further use. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These use a series of marked lines (as on a graduatedcylinder) to indicate the different volumes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. By graduatedcylinder, add 12 ml of the acetic acid - chloroform solution. 3. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A graduatedcylinder is meant to be read with the surface of the liquid at eye level, where the center of the meniscus shows the measurement line. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Immediately add by graduatedcylinder, 12 ml of either distilled or deionized water, stopper and shake vigorously to liberate the iodine from the chloroform layer. 7. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The liquid to be tested is poured into a tall container, often a graduatedcylinder, and the hydrometer is gently lowered into the liquid until it floats freely. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Graduated cylinders are generally more accurate and precise than laboratory flasks and beakers. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For these reasons, graduated cylinders should not be used to perform volumetric analysis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Typical capacities of graduated cylinders are between 5 ml and 2000 ml. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Graduated cylinders are sometimes used to indirectly measure the volume of a solid by measuring the displacement of a liquid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Often, the largest graduated cylinders are made of polypropylene for its excellent chemical resistance or polymethylpentene for its transparency, making them lighter and less fragile than glass. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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