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whm0827铜虫 (小有名气)
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[求助]
请帮忙翻译个句子
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| The Pressure/Vacuum test is performed prior to any preconditioning of the fuel tank. Determine the fuel tank system’s design pressure and vacuum limits under normal operating conditions considering the influence of any associated pressure/vacuum relief components. Pressurize the empty tank, sealed with the OEM fuel cap, or a modified OEM fuel cap as required, to within 10% of the system’s normal high pressure operating limit and then evacuate to within 10% of the system’s normal vacuum operating limit. If the fuel tank has no features that would cause positive or negative pressures during normal operation, then pressure/vacuum cycling is not required. The tank pressure/vacuum cycling shall be performed in a 49o C+/- 3o C ambient with compressed air of no less than 21o C. Repeat the pressure/vacuum process until the tank has been subjected to not less than 1000 cycles in 8 hours +/- 1 hour. |
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reko34
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whm0827: 金币+5, 翻译EPI+1, ★★★★★最佳答案 2014-04-18 12:58:18
whm0827: 金币+5, 翻译EPI+1, ★★★★★最佳答案 2014-04-18 12:58:18