Its subject coverage includes: role of hydrogen, factors affecting embrittlement after heat treatment, and preventive measures.

它的主题涉及的范围包括：氢的作用、热处理后影响脆化的因素、预防措施。

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Yiqun Zhang Hua (Tsinghua University Library, Beijing 100084, China) Abstract The present article briefly introduces the subject coverage and the record format of Science Abstracts.

介绍了英国《科学文摘》选收论文的主题范围，以及文献报道的格式。

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Notes on the definition and on the scope of coverage for the subject.

对主题定义和覆盖范围的说明。

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Part B coverage is subject to various deductibles and co-pays.

FORBES: Magazine Article

This new limited warranty coverage remains subject to the other terms, conditions and exclusions of the Nissan New Electric Vehicle Limited Warranty, which otherwise remain unchanged.

ENGADGET: Nissan upgrades US Leaf warranties, will 'restore' batteries that lose too much charge

In the meantime, health plans with waivers must tell consumers their coverage is subject to an annual dollar limit lower than usually allowed under the law, according to new disclosure requirements the administration released Friday.

WSJ: Obama Administration to End New Waivers Under Health Law