An analogy that applies to levels of abstraction is that of a black-box view (a higher level that does not show implementation details) and a white-box view (an inside look at how things work).

与抽象级别类似的是黑箱视图(不显示实现细节的较高级别)和白箱视图(显示事物工作方式的内部视图)。

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The "TV control interface" occurs in a white box expansion at this level of decomposition, and thus is treated as a black box.

“电视控制接口”就被视作一个黑盒来处理。

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The study shows that genes in black and white women differ at the molecular level, which could be responsible for the aggressive clinical features of breast tumors seen in black women, Dr.

研究表明，黑人和白人女性在分子水平上的基因的差异，导致了黑人妇女在乳癌肿瘤临床特性的差异。

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We have an achievement gap between white and black students at the secondary level of 70% in some subject areas--70%.

FORBES: Magazine Article

Thousands of people, black and white, filthy and rank with a collective energy level that ranged from zombielike to merely exhausted: Members of the crowd said they felt like animals, but the hundreds of actually animals that were there could barely muster a collective growl.

NPR: Evacuating New Orleans �� But to Where?