water coning into the well

  • 1sample preparation — ▪ chemistry Introduction  in analytical chemistry (chemistry), the processes in which a representative piece of material is extracted from a larger amount and readied for analysis. Sampling and sample preparation have a unique meaning and special …

    Universalium

  • 2Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …

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  • 3Mass spectrometry — (MS) is an analytical technique that measures the mass to charge ratio of charged particles.[1] It is used for determining masses of particles, for determining the elemental composition of a sample or molecule, and for elucidating the chemical… …

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  • 4Earwax — Wet type human earwax on a cotton swab Earwax, also known by the medical term cerumen, is a yellowish waxy substance secreted in the ear canal of humans and other mammals. It protects the skin of the human ear canal, assists in cleaning and… …

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  • 5Microscopy — is the technical field of using microscopes to view samples and objects that cannot be seen with the unaided eye (objects that are not within the resolution range of the normal eye). There are three well known branches of microscopy, optical,… …

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  • 6Analytical chemistry — For the journal, see Analytical Chemistry (journal). Analytical chemistry is the study of the separation, identification, and quantification of the chemical components of natural and artificial materials.[1] Qualitative analysis gives an… …

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  • 7Intracranial pressure — (ICP) is the pressure inside the skull and thus in the brain tissue and cerebrospinal fluid (CSF). The body has various mechanisms by which it keeps the ICP stable, with CSF pressures varying by about 1 mmHg in normal adults through shifts in… …

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  • 8Railroad switch — For other uses, see Switch (disambiguation). A right hand railroad switch with point indicator pointing to right …

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  • 9Ear candling — An N.D. ear candling a patient in an experiment to determine its efficacy. There is usually a flame retardant cloth between the patient and the plate.[1] …

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  • 10Rail adhesion — Driving wheel of steam locomotive The term adhesion railway or adhesion traction describes the most common type of railway, where power is applied by driving some or all of the wheels of the locomotive. Thus, it relies on the friction between a… …

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