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  2. Dean–Stark apparatus - Wikipedia

    en.wikipedia.org/wiki/Dean–Stark_apparatus

    The Dean–Stark method is commonly used to measure moisture content of items such as bread in the food industry. This equipment can be used in cases other than simple removal of water. One example is the esterification of butanol with acetic acid catalyzed by sulfuric acid. The vapor contains 63% ester, 29% water and 8% alcohol at reflux ...

  3. Fish trap - Wikipedia

    en.wikipedia.org/wiki/Fish_trap

    A fish trap is a trap used for catching fish and other aquatic animals of value. Fish traps include fishing weirs, cage traps, fish wheels and some fishing net rigs such as fyke nets. [ 1 ] The use of traps are culturally almost universal around the world and seem to have been independently invented many times.

  4. Raceway (aquaculture) - Wikipedia

    en.wikipedia.org/wiki/Raceway_(aquaculture)

    Raceway (aquaculture)

  5. Filter feeder - Wikipedia

    en.wikipedia.org/wiki/Filter_feeder

    Filter feeder - Wikipedia ... Filter feeder

  6. Cleaner fish - Wikipedia

    en.wikipedia.org/wiki/Cleaner_fish

    Cleaner fish interaction durations and memories of reoccurring clients are influenced by the neuroendocrine system of the fish, involving hormones arginine vasotocin, Isotocin and serotonin. [ 3 ] Conspicuous coloration is a method used by some cleaner fish, where they often display a brilliant blue stripe that spans the length of the body. [ 9 ]

  7. Glass float - Wikipedia

    en.wikipedia.org/wiki/Glass_float

    Glass float - Wikipedia ... Glass float

  8. Siphon - Wikipedia

    en.wikipedia.org/wiki/Siphon

    Siphon - Wikipedia ... Siphon

  9. Cleaning symbiosis - Wikipedia

    en.wikipedia.org/wiki/Cleaning_symbiosis

    Cleaning symbiosis is a mutually beneficial association between individuals of two species, where one (the cleaner) removes and eats parasites and other materials from the surface of the other (the client). Cleaning symbiosis is well-known among marine fish, where some small species of cleaner fish, notably wrasses but also species in other ...

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