Learner's definition of THICKNESS
1
a : the distance between the top and bottom or front and back surfaces of something : a measurement of how thick something is厚度;粗细 [noncount]
[count]
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the length, circumference, and thickness of the log这根原木的长度、周长和粗细
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Plywood is available in various thicknesses.各种厚度的胶合板均有货。
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Cooking time will vary depending on the thickness of the steak/chops.烹饪时间要视牛排/排骨的厚度而定。
b [noncount] : the quality of being thick浓度;密度 2
[count] : a layer or sheet of some material一层 —
usually + of