| 单词 | fold | 
| 释义 | fold [fōld]  ANATOMY A plication or doubling, as of various parts of the body such as membranes and other flat surfaces.  GEOLOGY A bend in rock strata or other planar structure, usually produced by deformation; folds are recognized where layered rocks have been distorted into wavelike form.  METALLURGY See <<lap>>  | 
	
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