The stress corrosion which will be possible happen in welded plate heat exchanger was principally analyzed and preventive measures for them were given.

分析了全焊接板式换热器发生应力腐蚀的原因，提出了相关的防护措施。

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The attorney-general, Britain's top law-enforcement official and a political appointee, was careful to stress that national security principally, Saudi Arabia's help in the fight against al-Qaeda was at stake.

ECONOMIST: Corruption and the law