Fault diagnosis and life predication are key parts of civil aviation engine heath management system, and are the important means to achieve on-condition maintenance.

故障诊断和寿命预测是民航发动机健康管理的重要内容，是实现发动机视情维修的主要技术手段。

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On Earth, the condition often leads to osteoporosis, which leaves bones susceptible to fractures and breaks.

在地球上，这种情况常常会导致骨质疏松，这将使得骨头容易骨折。

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On the Web, usability is a necessary condition for survival.

在网络上，可用性是生存的必备条件。

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It involves allegations that a $600 million government bailout was given to Century Bank on condition that some of the money be used to fund the president's re-election campaign.

VOA: standard.2009.12.10

By the way, ESPN sidelines correspondents such as Adrian Karsten were able to cut through restrictive new rules on player-condition disclosures to give quick accounts on the busted bodies.

FORBES: Magazine Article

He served time for jury tampering and fraud at a federal penitentiary in Lewisburg, Pennsylvania, until being pardoned by President Richard Nixon on December 23, 1971 -- on the condition that he not try to get back into the union movement before 1980.

CNN: STORY HIGHLIGHTS

The source - who was speaking on condition of anonymity - added that the questioning was taking place in the capital Niamey, without revealing any further details.

BBC: Niger seizes suspects in French hostage 'killings'