R角:R是圓角, Radius,指內圓弧角或外圓弧角C角:C 是倒角, Chamfer,一般指45度的倒角【知識】水深1m的壓力等於多少kPa 1 atm = 101.3 kPa 1 atm = 76 cm-Hg = 10.336 ...
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