| 单词 | macrostructure | 
| 释义 | macrostructure [¦mak·rō`strǝk·chǝr]  METALLURGY Structure of an etched metal visible to the naked eye or at magnifications up to 10 diameters.  SCIENCE AND TECHNOLOGY The external forms of a structure that can be observed without magnification, for example, the cubic crystal form of sodium chloride.  | 
	
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