| 词汇 | jackhammer |
| 释义 | jackhammer noun[ C ] USuk /ˈdʒækˌhæm.ər/ us /ˈdʒækˌhæm.ɚ/ a pneumatic drill风钻（同 pneumatic drill） Tools -pronged adjustable spanner adze Allen key auger awl excavator gavel gimlet gouge grapnel grappling iron grindstone plunger prong rasp razor knife reamer sander trowel jackhammer | American Dictionaryjackhammer noun[ C ] us/ˈdʒækˌhæm·ər/ a powerful tool, held in the hands and operated by air pressure, that is used for breaking hard surfaces such as rock and roads Examples of jackhammerjackhammer As you know, jackhammers cause angioneurosis, a serious illness caused by vibrations affecting huge numbers of construction workers. From Europarl Parallel Corpus - English Their sound has been described as a jackhammer being ground in a compactor. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Jackhammer was once clocked at two hundred blows per minute in testing. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Additionally, some users of pneumatic jackhammers may use a pneumatic lubricator which is placed in series with the air hose powering the air hammer. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Use of heavy jackhammers (heaver than 14 kg class) tends to cause cracking of the concrete all around the slots. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Hand-held jackhammers are typically powered by compressed air, but some use electric motors. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The effectiveness of the jackhammer is dependent on how much force is applied to the tool. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The typical approach is to saw cut and jackhammer out the slots for the dowels. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The typical process is to saw cut and jackhammer out the slots for the dowels. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Engineers realized that jackhammers could not be employed to remove the sidewalks without risking compromising the structural integrity of the entire bridge. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. At first, it was nothing more than a clatter of riveting jackhammers. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. An observer situated one metre from a vocalizing whale would perceive a volume roughly equivalent to the volume of a jackhammer operating two metres away. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This increases the life and performance of the jackhammer. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. If the truck breaks down or for some other reason the concrete hardens in the truck, workers may need to enter the barrel with jackhammers. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He often uses a heavy-duty jackhammer in order to get into bank vaults. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of jackhammer 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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