本帖最后由 andas 于 2012-12-16 21:01 编辑
A narrow field of view produces___________. 狭窄观看条件会产生; a、higher magnification and a greater depth of field 目测对象的尺寸和深度会变得越大 b、higher magnification and a smaller depth of field 目测对象的尺寸变大和深度变小 c、less magnification and a greater depth of field 尺寸较小,深度较深 d、less magnification and a shorter depth of field 尺寸较小,深度较浅
请解释什么是狭窄观看条件。。 |