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Ethers
แปลว่า(Environmental Engineering) An organic compound which has two hydrocarbon groups bound by an interior oxygen atom. The general formula is R'-O-R".
Brazing
แปลว่า(english) Joining metals by fusion of nonferrous alloys that have melting points above 800 F (425C), but lower than those of the metals being joined. May be accomplished by a torch. Filler metal is ordinarily in rod form in torch brazing; whereas in furnace and dip brazing the work material is first assembled and the filler metal may then be applied as wire, washers, clips, bands, or may be bonded, as in brazing sheet.
Others will be coming soon. we have a long night ahead
แปลว่าคนอื่น ๆ จะมากันแล้วหล่ะ คืนนี้ยังต้องไปอีกไกล
Find Oneself
his
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