| 释义 |
metallography|mɛtəˈlɒgrəfɪ|
[ad. mod.L. metallographia, a. Gr. µεταλλογραϕία, f. µέταλλον metal n. + -γραϕία -graphy. Cf. F. métallographie.]
1. ‘A treatise or description of metals’ (Bailey 1721). rare—0.
2. The descriptive science relating to the internal structure of metals.
1871T. A. Blyth (title) Metallography as a separate Science, or the Student's Handbook of Metals, etc., etc. 1901Engineering Mag. XIX. 751/1 We have long been accustomed to ascribe all mechanical changes in metals directly to molecular displacements, but metallography has thrown a new light on this subject.
3. A printing-process akin to lithography, in which metal plates are used instead of stones.
1875in Knight Dict. Mech. |