Insects will be scared to death by predators for fear

In the experiment, a group of dragonfly larvae and carnivorous fish were placed in the same aquarium. Even if the fish cannot eat dragonflies, some dragonflies are scared to death. According to foreign media reports, insects may not have a developed brain, but this does not mean that they will no ......

Who was the "poisonous" mattress injured?

For the average consumer, this is an era surrounded by various "poisons". For most manufacturers who insist on using conscience to make products and win consumers by quality, this is a small part of the profit-making villain. In the years of disaster, in the words of the general manager o ......

Carton factory operation management system

A comprehensive operational management system should include at least the following functions: Sales Management Subsystem 1.1 Customer Profile 1.2 Product Profile 1.3 Product and Process Design 1.4 Sales Order Management 1.5 Production Work Order Processing 1.6 Finished Product Storage Mana ......

Slitting machine shortcomings

Disadvantages: The speed is not high, and the high-speed friction of the magnetic powder is easy to occur at high speed, which causes high temperature, which causes the magnetic powder clutch to heat up and shorten its life. The cutter is used to cut a certain width of the web ......