A simple test for memory leaks is to leave the system running after the last test of the day; if the system has recovered to the original state by the next day, then you can often rule out a leak.
对于内存泄漏的一个简单测试是，在某天的最后一次测试之后让系统继续运行；如果到第二天，该系统恢复到了原始状态，那么您通常可以排除泄漏。
And to start off on your crusade for memory-leak finding, you'll create a test MySQL database, shown in Listing 4.
并且为了开始进行内存泄露查找的征战，您将创建一个测试MySQL数据库，如清单4所示。
Eddy current, magnetic leak, magnetic particle and ultrasonic test are the main methods used for pumping rod test.
目前，对抽油杆的自动探伤主要有涡流、漏磁、磁粉及超声方法，各有其优缺点及适用范围。
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