It is the only way to solve above problems that the earth leakage circuit breaker of time lag action and the distribution protection are adopted in low voltage supply system.

在低压供电系统内采用延时动作的漏电保护开关和分级保护技术，是解决上述问题的唯一途径。

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They range from protection of the environment and global warming to fair pricing of water services and equitable distribution of water for irrigation, industry and household use.

它们涉及的领域从环境保护、全球变暖到水服务的公平定价以及灌溉、工业和家庭用水的公平分配。

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This protection of users' rights is accomplished with a device called a copyleft: the software license claims copyright protection and prohibits distribution unless the user is granted these rights.

这种用户权利保护可通过称为copyleft的设备实现：软件许可证声明了版权保护和禁止发布，除非用户被授予了这些权利。

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The draft standard only covers the format of the content, not a copyright protection and distribution specification, said Kawell.

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Foreign retailers also like the look of another consequence of government protection Japan's complicated and costly wholesale distribution system, which has survived because small retailers have lacked the muscle to cut out the layers of middlemen or to deal directly with the manufacturer.

ECONOMIST: Japanese retailing

The groups established six panels to handle water and sanitation, health and nutrition, distribution of relief items, logistics and infrastructure, camp management, and protection and security.

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