delta metal
Not variegated.
A brass alloy consisting of copper (55%), zinc (41-43%) and iron (1-3%), with the balance consisting of various other metals. The proportions used make the material harder and suitable for valves and bearings.
(archaic) Contraction of thou art.
Up to one's ankles in something.
海事技師は、優れた耐摩耗性のために、船のポンプの軸受に銅55％、亜鉛41〜43％、鉄1〜3％から成る黄銅合金を指定した。
Don't have an account? Sign up
Do you have an account? Login
DiQt
Free
★★★★★★★★★★
