empoison การใช้

• The empoison of this courseware changed the situation of the traditional teaching model in which the teacher draw the picture on the blackboard and it is so difficult to image the three - dimension space that the students ca n ' t understand the relevant knowledge in space analytic geometry
• Now , energy souces consume increasing daily and environment empoison being serious gradually , wind power , as renewable , no pollution energy source , is paid great attention by more and more countries . the technology also become research hotspot of many country ' s scholar
• Now , energy sources consume increasing daily and environment empoison being serious gradually , forced people to consider new and renewable energy development and utilization , wind power is paid great attention by more and more countries because of its outstanding excellence in them
• Due to slope cable bears barely alternative load longtime in nature environment , it is easy to corrosion and wreck . seriously , the bridge is possibility to collapse in strictness air empoison , water pollution , seashore and ocean surroundings . therefore , to study cable ’ s corrosion widely and to inhibit corrosion process are very important for increase endurance and safety of bridge construction