| 单词 | gypsum |
| 释义 | gypsum noun[U] uk/ˈdʒɪp.səm/us/ˈdʒɪp.səm/a hard,whitesubstancethat is used in makingplasterofParis 石膏Geology: types of rock
Examplesofgypsumgypsum The sabkhas are covered by a salt crust, 3-5 cm thick, under which there lies 25-150 cm of carbonate sand,gypsumand halite. From theCambridge English Corpus A few layers ofgypsum-bearing mudstones occur in the western part. From theCambridge English Corpus Moisture was monitored daily in each soil x moisture combination on four seedlings withgypsumblocks placed at 20 cm depth. From theCambridge English Corpus Circles represent values less than 2%, except in thegypsumzone centered on 11 m, where circles signify only the presence of pollen types. From theCambridge English Corpus Wave-ripple marks are commonly observed within this facies association, andgypsumoccurs locally as discontinuous laminae. From theCambridge English Corpus The minor internal dissolution ofgypsumhas an important consequence for the immediate habitat. From theCambridge English Corpus Analysis of the photograph of thegypsumcast and the latex cast at hand indicates that the casts were made from the same specimen. From theCambridge English Corpus However,gypsumis not always available, it is now very expensive and its application on groundnut may not be economical. From theCambridge English Corpus Similar to that of the 1993 core, the profile containedgypsumbands that reflect periods of low lake level and, hence, dry climate. From theCambridge English Corpus Interbedded shale and coal facies contain occasional desiccation cracks and locallygypsumcrystals. From theCambridge English Corpus The colour of thegypsumis normally greyish, and in-hand specimens of thegypsumcontain large and clearly visible crystals. From theCambridge English Corpus 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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