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 sediment ['sedimәnt]   添加此单词到默认生词本
n. 沉淀物, 沉积

[化] 沉降物; 沉积物

[医] 沉淀, 沉积物




    sediment
    [ noun ]
    1. matter that has been deposited by some natural process

      2. <noun.object>
    [ verb ]
    1. deposit as a sediment

      2. <verb.motion>
    2. settle as sediment

      3. <verb.motion>


    Sediment \Sed"i*ment\, n. [F. s['e]diment, L. sedimentum a
    settling, fr. sedere to sit, to settle. See {Sit}.]
    1. The matter which subsides to the bottom, from water or any
    other liquid; settlings; lees; dregs.

    2. (Geol.) The material of which sedimentary rocks are
    formed.

    1. They will use sonar to determine the sea bottom's characteristics; search for and count larval lobsters; scuba dive to survey lobster densities, shelter sizes and abundance of predators; and sample ocean bottom sediment for invertebrates.
    2. Second, turbulent water, such as water roiled by the discharge from a quarry, is anathema to the mussels, which choke on stirred up sediment.
    3. For example, it isn't known whether the method could be used with PCBs deposited in sediment on the bottom of rivers, lakes and harbors.
    4. It's too early to start looking for PCB-free striped bass, said Darrell Banks, deputy commissioner of the state's Department of Environmental Conservation, which plans to dredge and remove 360,000 cubic yards of PCB-contaminated sediment from the river.
    5. If it gets in the sediment, it can be very toxic over a long period of time _ up to five years." For 234 years, the al-Sabah family ruled Kuwait. But on Thursday, the once-proud dynasty was shattered by a lighting invasion by Iraq.
    6. Magellan's images have shown Venus has very little loose sediment.
    7. The trees will be submerged in a line to form a sill, which will trap sediment as water washes over them.
    8. The department's announcement gave few specifics on its researchers' findings of contaminants in water, sediment and wildlife tissue.
    9. The Paute scheme, which supplies a third of the country's power, is threatened by the quantity of sediment accumulating in the reservoir.
    10. In a free-flowing system, there was up to 500 million tons a year." It took 700 years for Mississippi River sediment to build the marshes of the current delta.
    11. PCBs accumulated in sediment above Troy, N.Y. are being changed into less toxic forms by bacteria that work without oxygen, researchers from Michigan State University report.
    12. Flow rates in the two rivers are so slow that more sediment than normal is settling to the bottom, forming new sandbars that become navigational hazards.
    13. Without this sediment, the shoreline of the delta began to wash away.
    14. Roots from new vegetation might also hold sediment.
    15. The loss in land was kept in check, however, by tons of sediment washed down the Nile River every year.
    16. The main steel structure is supported on deep piles driven some 18 metres into the sediment of Cartuja island.
    sediment
    sediment accumulation
    sediment accumulation...
    sediment analysis
    sediment and water
    sediment and water test
    sediment barrier
    sediment bed
    sediment beer
    sediment bowl
    sediment box
    sediment bulb
    sediment bypassing
    sediment carring estuary
    sediment catcher
    sediment chamber
    sediment charge
    sediment classification
    sediment collector
    sediment concentration
    sediment control stru...
    sediment control works
    sediment corer
    sediment delivery ratio
    sediment deposition
    sediment diffusion
    sediment discharge
    sediment discharge curve
    sediment discharge rate
    sediment dislodging f...
    sediment diverter
    sediment drift
    sediment dynamics
    sediment engineering
    sediment escape
    sediment flushing at ...
    sediment flux
    sediment grade size
    sediment grain
    sediment humus
    sediment hydrograph
    sediment in suspension
    sediment incrustation
    sediment index
    sediment induced defo...
    sediment intrusion
    sediment load
    sediment load sampling
    sediment longitudinal...
    sediment motion
    sediment movement
    sediment nutrient con...
    sediment pan
    sediment percentage
    sediment quality eval...
    sediment ripples
    sediment routing
    sediment runoff
    sediment runoff curve
    sediment sample
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