Presents a method to make the smoke exhaust rate equal to the ventilation rate by smoke control zoning for the usage of the dual purpose fan.

为实现风机的兼用，提出通过划分防烟分区，使排烟风量与通风风量保持一致的方法。

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State legislatures delegate to cities and towns the power to promulgate ordinances or by-laws in limited areas of law, including zoning, rent control, schools, traffic, and parking.

州立法机构授予城市和城镇在法律的限定领域颁布法令和细则的权力，这些法律限定领域包括分区、租金控制、学校、交通和停车等。

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It points out the thrust hydraulic cylinder should adopt zone control, and zoning principle of thrust hydraulic cylinder was also supplied.

指出推进液压缸控制应采用分区控制技术，并给出了推进液压缸分区原则。

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The Centers for Disease Control is calling for taxes on sugary drinks and junk food, zoning restrictions on fast-food restaurants around schools and a ban on advertisements for junk food aimed at children.

VOA: standard.2010.03.09

Parents also are members of local Community Education Councils, which control zoning.

WSJ: In Education, Many Levels, Types of Power

In Pennsylvania, seven municipalities have filed a lawsuit challenging a 2012 state law that takes away their ability to control gas drilling operations through local zoning.

WSJ: NY appeals court to consider local fracking bans

For starters, zoning laws, which liberals favor to control "suburban sprawl, " have constrained California's housing supply and ratcheted up prices.

WSJ: Allysia Finley: The Reverse-Joads of California