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这是一段刻骨铭心的爱恋，发生在属于两个时空的神秘恋人之间。时光错乱使得他们的爱情有别于世间所有的有情人，却有着相同的从一见钟情到相知相持的曼妙过程。Attack Power UP [Big] 15青梅竹马的谷微与徐子睿如欢喜冤家般的共同成长，在四年大学生活中互相鼓励、学习和生活共同进步，在相处中慢慢喜欢上彼此却又互相较劲说不出口，因种种误会而遗憾错失的两人，多年后成长成熟，再次重逢，这一次，谁都不愿再放手。大流行时期的爱情。 虽然现在并不是出去约会，结识某人并坠入爱河的最佳时机，但Key和Chen在增强的社区隔离中找到了彼此，并以让他们感到惊讶的方式建立了联系。 尽管大流行带来了种种限制，挑战甚至危险，当他们彼此了解时，一些非常特殊的事物开始在他们之间绽放。 在我们被迫彼此分开的时代，爱有力量连接我们吗？An event can be active (open) or stopped (closed). Active means that the event scheduler checks whether the event action must be called. Stopping means that the declaration of the event is stored in the directory, but the scheduler does not check whether it should be called. After an event is created, it becomes active immediately, and an active event can be executed once or more times.A packing assembly 9 is arranged between the valve stem 3 and the valve cover 2, the O-ring 10 is further arranged on the upper part of the packing assembly 9, the upper part of the O-ring 10 is provided with a packing gland 11, the valve body 1 is provided with an arc-shaped end face 12, the arc-shaped end face 12 forms a line seal between the valve body 1 and the valve seat 7, and the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41. The arcuate end face 12 forms a line seal between the sealing surface of the valve body 1 and the valve seat 7. The water grain 41 can ensure the sealing performance of the valve seat 7 and the valve disc 4.