In an OCA, there are many aspects to security that may need to be implemented. Some of these areas include.

在一个OCA中，有多方面的安全需要实现。这些方面包括。

youdao

From the professional viewpoint of the author, these areas include cover design, page layout, illustrations and woodcut cartoons.

就作者的专业角度而言，这些领域包括封面装帧设计、书刊版面装帧、书文插图和木刻漫画四个方面。

youdao

Some drawbacks to wind farms include visual pollution and noise, although these can be overcome by improving their design and locating them in isolated areas.

风力发电场的一些缺点包括视觉污染和噪音，尽管这些可以通过改进设计和将它们安置在偏远地区来克服。

youdao

These areas include the Alps in Italy and Switzerland, the coastal mountains of western Canada, and the Sierra Nevada and Rocky Mountains in the United States.

VOA: special.2010.01.05

These "hotspot" areas include Northern Australia, Central South America, Eastern Siberia and parts of the United States and Canada.

VOA: special.2009.12.02

Impacts in these areas could include flooding to land and roads.

BBC: Scottish flood alerts as rain hits travel

These policy areas include health, education, transport and the environment.

BBC: Vote on the referendum

These could include areas in California, Washington D.

FORBES: From War Veterans to Entrepreneurs (VIDEO)