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　　只是一个很平凡的壶绘师学徒，而且是「草食系阿宅」。女孩小铃（安达佑实 饰）和母亲阳子（田中好子 饰）相依为命的生活即将划上句号，因为阳子和名为悟志（内藤刚志 饰）的男人结婚了，就这样，悟志成为了小铃的父亲。悟志是一个整天游手好闲不务正业的男人，为了养家糊口，阳子不得不没日没夜的工作以补贴家用，没过多久，阳子就病倒了。A low temperature stop valve, Unlike Example 1, Comprises a valve body 1 and a valve cover 2, A valve stem 3 is arrange in that valve body 1, One end of the valve stem 3 is provided with a valve disc 4, The other end of the valve stem 3 is provided with an adjusting handwheel 5, A low portion of that disc 4 is provided with a guide sleeve 6, The guide sleeve 6 is fixed by means of a connecting piece and a spring pad 8, Between that disc 4 and the guide sleeve 6 is provide a valve seat 7, Between that valve stem 3 and the valve cov 2 there is provided a packing assembly 9, The O-ring 10 is further arranged at 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, the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41, the packing assembly 9 comprises a flexible graphite packing layer, and the valve body 1 is provided with a liquid inlet cavity and a liquid outlet cavity.忙碌了一天，大家早早地歇了，等第二日正式迎亲。(2) If the width is 25m or more, add two additional ring lamps at or near the widest part on both sides;The Liskov Substitution Principle (LSP) is one of the basic principles of object-oriented design. The Richter substitution principle says that wherever a base class can appear, subclasses can certainly appear. LSP is the cornerstone of inheritance reuse. Only when derivative classes can replace base classes and the functions of software units are not affected can base classes be truly reused, and derivative classes can also add new behaviors to base classes. The Richter substitution principle is a supplement to the "open-close" principle. The key step to realize the "open-close" principle is abstraction. The inheritance relationship between the base class and the subclass is the concrete realization of abstraction, so the Richter substitution principle is the specification of the concrete steps to realize abstraction. --From Baidu黎水也道：是呀，是呀。