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倒是尹旭，年纪轻轻，倒真是有两下子。The creepage distance is divided into two grades, and the creepage distance of 300V grade is ≥ 5 mm; Creepage distance of 600V grade ≥ 7mm. The creepage distance is designed for 220V voltage according to 300V grade, and the creepage distance is designed for 380V voltage according to 600V grade. For 220V and 380V high-power parts, character marks are applied to allow cuts in PCB design to meet the requirements of creepage distance.We found that it was not very difficult to realize it ourselves, and Spring actually did so. In this way, IoC is actually an upgraded version of the factory model! Of course, to do a mature IoC framework, there is still a lot of detailed work to do. Spring not only provides a Java IoC framework that has become the industry standard, but also provides more powerful functions, so don't build wheels! If you want to know more about IoC implementation details, you may as well learn Spring's source code to deepen your understanding!当这些书啊啥的抬到跟前，她却傻眼了，小身子前倾，瞪着一排篓子，从左看到右，又从右看到左，硬是想不起来喊啥。周围已经有人偷笑了。Finally: Get out of your comfort zone, don't be too difficult at once, come little by little, and let your body adapt to your habits.故事开始于第二年的“ Inspector Asagao”之后的春天，而当Asagao独自访问东北以寻找母亲的尸体时，一个新的故事就被传开了。 据悉，她面对东日本大地震和母亲的死亡深深，并且面临着东日本大地震以外的大规模灾难，而这是以前工作中无法避免的。