The machine tool is one of the new products developed and produced by the Shanghai No.8 Machine Tool Plant. It adopts a lift adjustable wiretrame and molybdenum filament tensioning mechanism with large cutting thickne...The machine tool is one of the new products developed and produced by the Shanghai No.8 Machine Tool Plant. It adopts a lift adjustable wiretrame and molybdenum filament tensioning mechanism with large cutting thickness and high machining precision. It is equipped with an advanced IBM-PC 386 microcomputer-controlled system, with strong performance and CRT display. Man/展开更多
Considering special working conditions of under ground coal mines,traditional IC cards,magnetic cards or radio frequency cards do not work well in entrance guard and work attendance check system because of inconvenien...Considering special working conditions of under ground coal mines,traditional IC cards,magnetic cards or radio frequency cards do not work well in entrance guard and work attendance check system because of inconvenient carry,damaged easily and unsuitable in severe surroundings.So an access and attendance system for mine which is more firmly,durable and good performance is designed using new intelligent information carrier-iButton(Information Button).For iButton has a stainless steel shell,which make it has the advantages of anti-strike,antirust,anti-magnetism and anti-folded,the reliability of the system is enhanced greatly.展开更多
文摘The machine tool is one of the new products developed and produced by the Shanghai No.8 Machine Tool Plant. It adopts a lift adjustable wiretrame and molybdenum filament tensioning mechanism with large cutting thickness and high machining precision. It is equipped with an advanced IBM-PC 386 microcomputer-controlled system, with strong performance and CRT display. Man/
基金supported by the Natural Science Foundation of Shandong Province(ZR2009GQ012)Science and Technology Development Plan of China National Coal Association(10-067)
文摘Considering special working conditions of under ground coal mines,traditional IC cards,magnetic cards or radio frequency cards do not work well in entrance guard and work attendance check system because of inconvenient carry,damaged easily and unsuitable in severe surroundings.So an access and attendance system for mine which is more firmly,durable and good performance is designed using new intelligent information carrier-iButton(Information Button).For iButton has a stainless steel shell,which make it has the advantages of anti-strike,antirust,anti-magnetism and anti-folded,the reliability of the system is enhanced greatly.
