new things again...

i learn about air condition...in the air condition, it is consist of compressor, condenser, thermal efficiency valve(TEV) and evaporator...those things are the amin component in air cond.....(it's look like me giving a lecture) hehehhehe...learning a new thing is giving me a new ideas about something...on the same day, i was learning how to braze the copper pipe which is very good to me....it is look like as soldering electronic's circuit....