“Herbert pendulum method”的概念、定义、翻译、参考文献-科学参考

单词	Herbert pendulum method
释义	Herbert pendulum method [`hǝr·bǝrt `pen·jǝ·lǝm ´meth·ǝd] ^METALLURGY Hardness testing in which a 1- millimeter steel or jewel ball resting on the surface to be tested acts as the fulcrum for a 4-kilogram compound pendulum of 10-second period; the swinging of the pendulum causes a rolling indentation in the material, and several hardness factors, such as work hardenability, are determined.
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