What does 2b mean?

. "2B" means that words and deeds are unreliable, different from ordinary people, not serious and slightly derogatory. 2. "2b" is also a dirty word. "2" is used to insult each other and call them stupid [for example, you are a real person, 2], and "b" is homophonic with one of the dirty words. Therefore, "2B" is sometimes a very insulting word. 3。 Network terminology. It means stupid and rude words, and another very kind meaning is cute. Nb+sb = 2B6.2b is also the abbreviation of a certain kind of people. It may be harmless for friends to taunt each other with "2b" as a joke on the Internet. People who behave differently or are too unreasonable are often called here. 2B "is also a dirty word," 2 "is used to insult each other and say that they are stupid [for example, you are a real person, 2]" b "is homophonic with one of the dirty words, (the most vulgar two words are not mentioned. Therefore, "2B" is sometimes a very insulting word. 2B is the blackness of the pencil, which also refers to the person who uses the pencil, which is called LZ. You also use 2B, so the person who uses a pencil is 2BB for black and 2 for degree. The bigger the number, the darker the color. 2B pencil is a kind of soft pencil. When smearing an area, the soft HB-6B pencil is easier to smear evenly and has a metallic luster. It is not easy to break in all kinds of soft pencils. 2B It works well and it's cheap. B = blackness H = hardness. The more numbers of b, the darker and softer the pencil. The more numbers of h, the harder and lighter the color. HB is in the middle Pencils are divided into 10B, 9B, 8B, 7B, 6B, 5B, 4B, 3B, 2B, b, HB, f, h and b. According to actual needs, the ink depth of 2B pencil is suitable for readers to read cards, which is convenient for writing. Therefore, the Ministry of Education stipulates that the answer sheet for online marking must be answered with 2B pencil, otherwise it will be invalid. "2B" refers to the self-funded undergraduate course. 1A, 2A, 3A, 1B, 2B, 3B represent the grades of universities, and 1 represents the key universities approved by the Ministry of Education, which are commonly called schools; 2 means non-key universities, which are usually called undergraduate universities, which are usually called two schools; 3 represents three colleges and universities; And a and b refer to the grades of similar schools. For example, 1A stands for the best school in a school (that is, the best school in a key university, such as Tsinghua, Peking University and Renmin University). 2A refers to the better school of the two schools. 1B refers to a school that is one grade lower than the class school, and so on. 2B surface of 2B steel plate is also one of the common cold rolled surfaces of stainless steel. However, there are not many cold-rolled stainless steels with 2B surface on the market at present, so many people don't know much about 2B surface. In fact, 2B surface is widely used in some industries. In this paper, 2B surface is introduced. Considering the characteristics of 2B surface, 2B surface stainless steel is widely used in the following two aspects: first, some workpieces need deep drawing, because the rough surface is convenient to keep the lubricant on the steel plate surface during deep drawing, which improves the quality of deep drawing. However, if the workpiece requires a bright surface, it needs polishing after forming. The second type is some workpieces that need spraying, because the adhesion of coating on rough surface is much better than that on AB surface, and it is widely used in container manufacturing. At present, 409L and 4 10L stainless steel on 2B surface are widely used in container manufacturing. Compared with the common AB surface, the smoothness of 2B surface is lower than that of AB surface, but it is still a very uniform sub-smooth surface. 2B surface is generally heat-treated and pickled after cold rolling, and then leveled with rough rollers. No matter whether the stainless steel plate is a national standard, a Japanese standard, an American standard or an European standard, the surface of 2B has detailed specifications. Editor's reminder: Please pay attention to check whether the article ""has pagination content.