Introduces the constitutes of low voltage protection system of distributing transformer, analyzes the failure reason, puts forward concrete measures of improving low voltage protective reliability.

介绍了配电变压器低压保护的组成，对故障原因进行了分析，提出了提高低压保护可靠性的具体措施。

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The author briefly introduces the importance of airborne electronics protection and puts forward several principles and specific opinions of protective design in this article.

简述了机载电子设备防护的重要性，提出了进行防护设计的若干原则和具体意见。

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This paper inquires into some destructive channels of Tourist Environment and resources, and at the same time, puts forward some protective measures.

文章探讨了旅游环境和资源的破坏渠道，并提出了旅游环境的保护措施。

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Drawbacks: Crash insurance is expensive, and the tax rules on protective puts are somewhat unattractive.

FORBES: Investment Strategies

You could buy out-of-the-money protective puts--options that would make good some of your loss if the stock collapses.

FORBES: Magazine Article

Put sellers may be purging protective or bearish positions on HSBC post-earnings, or may be selling the puts outright to rake in available premium on the options.

FORBES: Traders Try On Talbots Options After Sycamore Partners Takes 9.9% Stake