- A-B-C-scale Rockwell machine
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прибор роквелла (для определения твердости) со шкалами А, В, С
Англо-русский словарь терминов металлургии и сварки. 2011.
A-B-C-scale Rockwell machine
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Rockwell scale — The Rockwell scale is a hardness scale based on the indentation hardness of a material. The Rockwell test determines the hardness by measuring the depth of penetration of an indenter under a large load compared to the penetration made by a… … Wikipedia
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Brinell scale — The Brinell scale characterizes the indentation hardness of materials through the scale of penetration of an indenter, loaded on a material test piece. It is one of several definitions of hardness in materials science.Proposed by Swedish engineer … Wikipedia
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