Abstract: the historical block protection is instantly many people care about, and the rapid urban renewal rate has a serious threat to their existence.

摘要：历史街区的保护是当下很多人关心的问题，过快的城市更新速度已经严重的威胁到了它们的存在。

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The good, professional stainless steel chemical-specific pumps, automatic return systems, the pump-block protection function, flow stability, durability, spraying the amount of precision.

配置优良、专业的不锈钢化工专用泵，自动回流系统、卡泵保护功能、流量稳定、耐用、喷涂量精确。

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The tracking protection will be an opt-in feature for users to identify and block certain forms of website tracking.

跟踪保护功能将会以可选特性的形式帮助用户识别并拦截某些形式的网站跟踪。

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The U.S. Senate is preparing to vote on legislation that would delay or block the Environmental Protection Agency from imposing carbon dioxide restrictions on the U.S. economy.

FORBES: The Senate's EPA Vote Will Help Determine Our Economic Future

In 2008, California sued the U.S. Environmental Protection Agency for trying to block its enactment of tough new rules on tailpipe emissions.

FORBES: With Driverless Cars, Once Again It Is California Leading The Way

She pointed out that the Children's Internet Protection Act already requires libraries to block net content that is harmful to children.

BBC: Many schools have already banned social network sites