1 ผลลัพธ์ สำหรับ *b.th.u.*

หรือค้นหา: b.th.u., -b.th.u.-

WordNet (3.0)

british thermal unit

(n) a unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure; equivalent to 251.997 calories, Syn. B.Th.U., BTU

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