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jackhammer    音标拼音: [dʒ'ækh,æmɚ]
n. 手提钻

手提钻

jackhammer
n 1: a hammer driven by compressed air [synonym: {air hammer},
{jackhammer}, {pneumatic hammer}]

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  • Water Spray Control of Hazardous Dust When Breaking Concrete with a . . .
    Water Spray Control of Hazardous Dust When Breaking Concrete with a Jackhammer Summary Construction workers are exposed to hazardous dust when using jackhammers to break concrete pave-ment NIOSH found that exposures could be re-duced by using a water-spray attachment
  • Vibration Syndrome (83-110) | NIOSH | CDC
    Current Intelligence Bulletin 38 In light of a recently completed, comprehensive study, conducted by the National Institute for Occupational Safety and Health (NIOSH), the Institute concludes that vibrating hand tools can cause vibration syndrome, a condition also known as vibration white finger and as Raynaud’s phenomenon of occupational origin Vibration syndrome has adverse circulatory
  • Water Spray Control of Hazardous Dust | NIOSH | CDC
    Construction workers are exposed to hazardous dust when using jackhammers to break concrete pavement NIOSH found that exposures could be reduced by using a water-spray attachment
  • Granted Granted Granted Granted 28225 28226 28227 28228 28232 28240 . . .
    Granted Granted Granted Granted 28225 28226 28227 28228 28232 28240 28241 28242 28243 28244 28245 28246 28247 28249 28250 28251 1 1 2026 2 5 2026 1 1 2026 12 23 2025
  • About Mental Health | Mental Health | CDC
    Mental health is a key component to overall health and is closely linked to physical health Factors at the individual, family, community, and society levels can influence mental health CDC promotes a public health approach to prevent mental health conditions before they develop or worsen If you live with a mental health condition or are experiencing mental distress, help is available
  • Similarities and Differences between Flu and COVID-19
    Compared with flu, COVID-19 can cause more severe illness in some people Compared to people infected with influenza virus, people infected with SARS-CoV-2 may take longer to show symptoms and may be contagious for longer periods of time You cannot tell the difference between flu and COVID-19 by the symptoms alone because many of the signs and symptoms are the same Testing is needed to
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    Guidance, tools, and resources for health departments to address COVID-19
  • Sexually Transmitted Infections (STIs) | STI | CDC
    Sexually transmitted infections (STIs) are very common Bicillin L-A® On March 6, 2026, the FDA announced they are allowing the temporary importation of Lentocilin© due to the ongoing limited availability and extended recovery of Bicillin® L-A See information for health care providers on the administration of Lentocilin© There are further details and priority actions for health
  • WORKPLACE - Centers for Disease Control and Prevention
    Many tasks in construction may gen-erate dust containing crystalline sili-ca: grinding or cutting concrete, tuck-pointing masonry, using a jackhammer to break concrete, or using mobile ex-cavation equipment (e g , drills, load-ers, graders, dozers, and trucks) Op-erator cabs used in the construction industry are meant to protect the equipment operator from excessive dust and noise When the
  • Milestones by 2 Years | Learn the Signs. Act Early. | CDC
    Important Milestones: Your Child By Two Years How your child plays, learns, speaks, acts, and moves offers important clues about your child's development Developmental milestones are things most children (75% or more) can do by a certain age Check the milestones your child has reached by 2 years by completing a checklist with CDC's free Milestone Tracker mobile app, for iOS and Android





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