overlays
['oʊvəleɪz]
v.
在…上铺或盖( overlay的第三人称单数 );
（尤指以感情或品质）撒满，遮掩;
例句:
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Through use of transparent overlays solutions to acid and base equilibria can be obtained rapidly.
使曲线明显重迭,可迅速得到酸和碱平衡的分解.
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A carpet overlays the wood floor.
地板上铺了一条地毯.
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The answer is the same if the limestone overlays the sandstone.
当灰岩盖在砂岩上时,系数是相同的.
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Layar boasts thousands of such overlays.
来自SA
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In the atmosphere it is called an inversion where cold dense air overlays hot air & suppresses convection.
来自SA