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Open the course of "Gem Processing Technology", It is found that it is based on "Gem Processing Technology" written by Professor Liu Ziqiang of Jewelry Department of Jinling Institute of Science and Technology. Including six aspects of knowledge-a preliminary understanding of some gemstone raw materials, Understand the names, characteristics and development history of different gemstone cut styles, understand some basic equipment and accessories for gemstone processing, understand the processing principles and technological methods of gemstones, see the processing process of standard round polyhedral styles, and learn the processing quality evaluation of gemstones (including jadeite).In 1992, the 25th Olympic Games began to become an official event.锦言被强行嫁给王爷，拥有双世记忆的她，叱咤整个王府。与王爷从互相讨厌到坠入爱河，这一世，锦言与王爷的爱情更甜！张大栓等一帮汉子正聚集在郑家院门前闲话，听了这话接道：是我想起来的。The conventional operation steps described above are used to divide Word documents into columns. When the same operation steps are used to "divide columns and type" different paragraphs of the document, the results are quite different. If this kind of problem occurs, you can refer to the following situation to see the Word column problem.? Then, if you do not have the files you need installed, you can also open the cmd input: