在古代中国，性教育一直是一个相对隐秘的话题。受到封建礼教和道德观念的影响，人们对性的认识和了解相对有限。然而，古人也有一些独特的方式来传承夫妻行房的知识，其中包括使用“嫁妆画”和“压箱底”。

一、嫁妆画：传承夫妻行房的视觉教材
嫁妆画是古代中国婚姻习俗中的重要组成部分。新娘在婚礼之前，会带着一些嫁妆物品嫁入新家。这些嫁妆物品中，有一种特殊的绘画，被称为嫁妆画。嫁妆画通常描绘了夫妻之间的性行为，以及生育和家庭美满的愿景。
嫁妆画是一种视觉教材，通过图像形式向新娘传授夫妻行房的知识。这种方式可以说是一种精确而直观的性教育，通过视觉和形象的呈现，使新娘能够更好地了解夫妻之间的性关系，以及如何进行性行为。同时，嫁妆画也寓意着夫妻之间的和谐和生育的重要性，对于新娘来说，也是一种婚姻和家庭的期望。

二、压箱底：隐秘的性教育传承方式
除了嫁妆画，古代中国还有一种更为隐秘的性教育传承方式，被称为“压箱底”。压箱底是指将一些性教育材料和书籍藏在箱底或其他隐蔽的地方，以防止未成年人和外人的查看。
压箱底中的性教育材料通常包括一些性爱指南、性技巧书籍以及夫妻之间的性经验分享。这些材料被视为珍贵的私密财富，只在夫妻之间传承。通过阅读和学习这些材料，夫妻可以更好地了解性行为的技巧和方式，提高性生活的质量。
结论：
古代中国的性教育方式虽然相对有限，但嫁妆画和压箱底作为传承夫妻行房的方式，也起到了一定的作用。嫁妆画通过视觉教材的形式向新娘传授夫妻行房的知识，而压箱底则通过书籍和材料的形式传承夫妻之间的性经验和技巧。

----------Introduction in English----------
In ancient China, sex education has always been a relatively secretive topic. Influenced by feudal ethics and moral concepts, people's understanding and understanding of sex is relatively limited. However, the ancients also had some unique ways to pass on the knowledge of marital intercourse, including using "dowry paintings" and "pressing the bottom of the box".
1、 Dowry painting: a visual textbook for inheriting marital intercourse
Dowry painting is an important component of ancient Chinese marriage customs. Before the wedding, the bride will bring some dowry items to her new home. Among these dowry items, there is a special type of painting called dowry painting. Dowry paintings typically depict sexual behavior between couples, as well as a vision of fertility and family happiness.
Dowry painting is a visual teaching material that imparts knowledge of marital intercourse to the bride in the form of images. This approach can be said to be a precise and intuitive sex education, which enables the bride to better understand the sexual relationship between husband and wife and how to engage in sexual behavior through visual and visual presentation. At the same time, dowry painting also symbolizes the importance of harmony and childbirth between spouses, and for the bride, it is also an expectation of marriage and family.
2、 Pressing the Bottom of the Box: A Hidden Way to Inherit Sexual Education
In addition to dowry paintings, ancient China also had a more secretive way of inheriting sex education, known as "pressing the bottom of the box". Pressing the bottom of the box refers to hiding some sex education materials and books at the bottom of the box or other hidden places to prevent minors and outsiders from viewing.
The sex education materials in the bottom of the box usually include some sex guides, sex skills books, and sexual experience sharing between couples. These materials are regarded as precious private wealth and are only passed down between spouses. By reading and learning these materials, couples can better understand the techniques and methods of sexual behavior, and improve the quality of sexual life.
Conclusion:
Although the methods of sex education in ancient China were relatively limited, dowry paintings and box bottoms also played a certain role as a way to inherit marital intercourse. The dowry painting imparts the knowledge of marital intercourse to the bride through visual textbooks, while the bottom of the box inherits the sexual experience and skills between the couple through books and materials.