文中以数字密码锁的设计为实例，从方案的确定，各阶层的划分，VHDL的应用，介绍了VHDL自顶向下的设计方法。
This paper introduces the VHDL top down design method including scheme determination, hierarchy division, and VHDL application taking a digital code lock design for example.
托马斯·布朗特把这个词收录到他1656年的《词集》（Glossographia），释义是社会阶层的划分，也指学校里学生的划分；
Thomas Blount included the word in his 1656 dictionary Glossographia saying both that it was a social division of people and that it referred to the division of students within a school;
因此，我们究竟是在创造一个新的精英阶层，还是在给世界划分一条新的界线，把拥有通讯和获取知识条件的人与无法获得这些条件的人区分开来？
Are we not, therefore, in the process of creating a new elite, of drawing a new line to divide the world between those who have access to communication and knowledge, and those who are left out?
我们完善了麦尔坎。葛拉威尔的“光环”——自反性、让人赞叹、悲剧而精确的划分，把别的印度人划分成牛车阶层、汽车阶层和飞机飞机，谁知道还有没有别的划分呢！
We've perfected Malcolm Gladwell's "blink" -the reflexive, addictive and tragically accurate placement of other Indians into bullock carts, scooters, airplanes and who knows what else.
我们完善了麦尔坎．葛拉威尔的“光环”——自反性、让人赞叹、悲剧而精确的划分，把别的印度人划分成牛车阶层、汽车阶层和飞机飞机，谁知道还有没有别的划分呢！
We’ve perfected Malcolm Gladwell’s “blink” —the reflexive, addictive and tragically accurate placement of other Indians into bullock carts, scooters, airplanes and who knows what else.
经济学家们说，尽管收入水平是划分阶层最普通的方式，但是对如何界定中产阶层并没有特别的标准。
Economists say there is no specific criteria for defining the middle class, though income level is the most common way of breaking it down.
电子商务各层级别及其分析可以划分为从广域通讯网络基础设施到电子商务市场和电子阶层的不同层次。
These levels of E-commerce development, as well as of its analysis, range from the wide-area telecommunications infrastructure to electronic marketplaces and electronic hierarchies.
等级，阶层：基于品质、阶级或等级的划分，如。
大家可能还不知道，我们现在生活在一个全新的零售世界里。这个世界并不仅是一个庞大的消费群体，而是被经济地位划分成两个消费阶层。
If you're not aware already, we're living in a new retail world, where there isn't so much one large consumer base, but two divided by economic status.
北京的每一条环线都是一个阶层的粗略划分。
Each ring road of Beijing is a rough division of social class.
研究者按照社会阶层划分的标准，走进挑选出的12户不同阶层的家庭，用民族志、焦点访谈和话语分析的方法研究他们收看《新闻报道》的具体形态。
We visited 12 families with different demographic features, studying, through ethnographic methods, focus group interview and discourse analysis, their behavior of watching News Reports.
其他人则提出，这个设计毫不实用，最好的结果也许就是在空气污染的区域划分出两种不同阶层的人。
Others say the plan is simply unrealistic and, at best, would lead to two classes of citizens in polluted areas.
其他人则提出，这个设计毫不实用，最好的结果也许就是在空气污染的区域划分出两种不同阶层的人。
Others say the plan is simply unrealistic and, at best, would lead to two classes of citizens in polluted areas.
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