Ventilation is an extremely important link related to the safety of mine production. Three-dimensional ventilation simulation system plays a very important role in the safety management of mine ventilation. The ventilation design of new mines, the selection of chief ventilator, and the optimization to the ventilation system of old mines are all inseparable from the accurate calculation of the ventilation network. For the network design of actual mine ventilation, it is often necessary to consider the rationality of the entire ventilation network from many aspects.

Navicat Data Modeler is a cross-platform visual database design software developed by PremiumSoft from Hong Kong in China. It comes with good usability, has practical functions such like: designs the database structure, performs a reverse or forward engineering process, imports models from the ODBC data source, generates complex SQL/DDL, and prints models. These can help user build high-quality conceptual, logical and physical data models easily and efficiently.

Bootstrap is currently one of the most widely used Responsive Web Design framework, and a number of web development tools have started to support it. But the thing is, most of them design web pages in the editing mode of the source code, which is unbearable for designers who are used to carry out web design works with Dreamweaver and such completely visual tools.

Proteus (AKA: Proteus Design Suite) is a well-known EDA (Electronic Design Automation) simulation software, developed by Labcenter Electronics from United Kingdom. Furthermore, it is also the only one design platform integrating circuit simulation software, PCB design software, and virtual model simulation software in one place. That means it can help users truly implement a complete design from concept to product.

As is known to all, all the time, the most popular RPG game production tool must have been none other than RPG Maker. But from now it needs to try its best to keep its job. Because it has had a brand-new and foolproof game engine that can produce both 2D and 3D RPG games with ease as its strong competitor - SMILE GAME BUILDER, which is currently the only 3D RPG game making software as I know (without regard to using the general 3D game development engines, such as Unity, Unreal Engine, etc.).