phosphor bronze
plural of data-base
Alternative form of brassiere
plural of waggle
Any alloy of copper with 3.5 to 10% tin and up to 1% phosphorus, notable for toughness, strength, low coefficient of friction, and fine grain.
時計職人は、その歯車に銅にスズ3.5～10％、リン最大1％を含む合金であるリン青銅を選んだ。靭性や強度、低い摩擦係数、そして細かな組織が長期間にわたる精密な動作を保証するからだ。
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DiQt
Free
★★★★★★★★★★
