Can anyone explain the principle of an optical self flushing toilet?

It's impossible to know a lot of drops, so it's good to find a well-known (Nantian Automation).

What does the sofa mean?

It hasn't been long since the sofa became an internet word. It originated from a certain BBS, and the first person to reply is generally called the first person, and when he talks about it, he says it becomes a sofa. The first reply post is generally considered to be the fastest, but some people, in fact, most people don't pay attention to the main post at all, just to grab the first "supporter-like" to post, so it is also called "blind hair", which sounds like "sofa"! >>>More

The first person to follow the post is called "sitting on the couch". >>>More

Because the cleaning work of men's and women's toilets is basically divided into one position. Because from the perspective of social ethics, the women's toilet must not be a cleaning uncle. And basically when they reach a certain age, the aunts will evolve into the third gender form.

Women like beauty, but for the sake of their home and beloved to give up beauty, all day around the pot turned into a yellow-faced woman, save for the sake of home and do not go to the beauty salon, will not say that it is because the husband earns less to save so much Women over 24, originally love the old, for the sake of home and the crystallization of love with the beloved man and have a child in common, it takes a lot of effort to give birth to a child, and the woman is also willing to give birth, when it is over, how much can a man manage? It was all carried by women, and it was boiled in the end"Ah Xiang Po", but the man has changed his mind and says that women should constantly enrich themselves, but what about men? Women's continuous enrichment of themselves is nothing more than trying to attract men's hearts and eyes Women have to work, take care of children, and socialize with friends around them, etc., aren't they tired? >>>More