In New York City, despite the pleas of safety engineers, meaningful fire drills are still not mandatory in skyscrapers.

在纽约城，不顾安全工程师的一再请求，意义重要的火灾避难训练在摩天大楼里仍旧没有强制执行。

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More than 30 certified qualification system including Certified Safety Engineers (CSE) system have been established in China since 1993.

我国的执业资格制度是1993年提出的，至今已建立了包括注册安全工程师在内的30多个执业资格制度。

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To organize and implement the certified qualification system for safety engineers, supervise and guide the administration of examinations and registrations of certified safety engineers.

组织实施注册安全工程师执业资格制度，监督和指导注册安全工程师执业资格考试和注册工作。

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So the U.S. is watching its lawmakers question company executives and government safety engineers, trying to learn more about what's gone wrong.

CNN: STORY HIGHLIGHTS

And, despite the best efforts of safety engineers, there will be explosions.

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The source of the problem that forced the Boeing 737-300 used on the Southwest Airlines flight 812 from Phoenix to Sacramento to make an emergency landing on April 1st, following a five-foot rent appearing in the upper-fuselage skin, has flummoxed engineers and safety officials alike.

ECONOMIST: Aircraft fatigue