求翻译：即使真空泵产生的真空度令人满意，也必须捡漏。将高低压手动阀关闭，约5-8分钟后，压力下降不得超过3.4KPa,如果超过此值，说明空调系统有泄漏点。是什么意思？

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Even if the vacuum pump vacuum is satisfactory, you must also pick up leaks. The high and low pressure off the manual valve, about 5 - 8 minutes, the pressure drops must not exceed 3.4 KPa, if you exceed this value, the air conditioning system with a leak.

Even if the vacuum pump produces the vacuum degree is satisfying, also must pick leaks.The high and low pressure hand operated valve closure, after 5-8 minute, the drop of pressure does not have to surpass 3.4KPa approximately, if surpasses this value, explained the air-conditioning system has the d

Even if the degree of vacuum of vacuum pump is satisfactory, you must also repair the leaky part of a roof. High and low pressure manual valve closed, after 5-8 minutes, pressure drop no more than 3.4KPa, if this value is exceeded, explains air conditioning system has a leak.

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