| 单词 | vacuum pump |
| 释义 | vacuum pump noun[C] uk/ˈvæk.juːm ˌpʌmp/us/ˈvæk.juːm ˌpʌmp/apieceofequipmentforremovingairorgasfrom acontainer,creatingavacuuminside 真空泵Machines - generators & pumps
Examplesofvacuum pumpvacuum pump A dilated glass cylinder with a glass joint (500-ml) was used as a collection chamber in which airflow was generated using avacuumpump. From theCambridge English Corpus Gaining the use of avacuumpumpwas difficult, and the renewal of the vacuum within the desiccators was not an easy task. From theCambridge English Corpus One source of vibration is from an additionalvacuumpump, attached to evacuate the camera, without mechanical de-coupling. From theCambridge English Corpus This consists of a floor-standing unit containing avacuumpump, disposable plastic vacuum canister, electric motor and computerised control unit. From theCambridge English Corpus At the start of the procedure the operator joins the connector to a longer piece of tubing from thevacuumpump. From theCambridge English Corpus The air pressure was adjusted in these bottles by avacuumpump. From theCambridge English Corpus Violence must be exerted if one is to reduce thevacuumpumpto an animal to be dissected. From theCambridge English Corpus Green asparagus (10 g) was rapidly crushed in a flask fitted to another flask immersed in liquid nitrogen and connected to avacuumpump. From theCambridge English Corpus A thermostat-controlledvacuumpumpconnected to the same perforated pipes as serving for leachate collection (as common in bioremediation pile design) draws air from inside the greenhouse into the pile. From theCambridge English Corpus An experimental advantage of discharges in ammonia is that all discharge products are gaseous and can easily be removed by avacuumpumpleaving a clean discharge chamber. From theCambridge English Corpus A specializedvacuumpumpis attached to the bleeder valve, which is opened and fluid extracted with the pump until it runs clear of bubbles. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.The material container is then placed into the vacuum chamber; avacuumpumpis connected and turned on. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Once this interval is reached, thevacuumpumpis shut off and the vacuum chamber release valve is opened to equalize air pressure. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Secondly was the vacuum back, the film (large-format single sheet film) was placed here and held in position by avacuumpump. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.An electrically-operated pump for this purpose would usually be called avacuumpump. 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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