Đối với hỗn hợp Etylic và Nước là hai cấu tử tan hoàn toàn vào nhau theo bất kỳ tỷ lệ nào có nhiệt độ sôi khác biệt nhau thì phương án tối ưu để tách hỗn hợp trên là chưng cất. Chưng là quá trình dùng để tách các cấu tử của một hỗn […]
A proven guide to computer-aided machining, CNC Programming: Principles and Applications has been revised to give readers the most up-to-date information on G- and M- code programming available today. This edition retains the book’s comprehensive yet concise approach, offering an overview of the entire manufacturing process, from planning through code writing and setup. is the […]
There are craftsmen in our shop who know little about CNC machining and CNC people who are not craftsman. The funny thing is that often these people imagine the other as having some kind of God-like abilities. The fact of the matter — little would get accomplished it weren’t for these two groups working together. […]
Building on a history of duct construction standards nearly 100 years old, the flagship SMACNA HVAC Duct Construction Standard – Metal Flexible 4th edition represents the state of the art in the sheet metal duct fabrication and installation requirements. Significant changes for the 4th edition include; flat oval tables for positive/negative pressure applications; spray and […]