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| ring-ball temperature (I. Havkin); ring-and-ball softening point (The ring-and-ball softening point is defined as the temperature at which a disk of the sample held within a horizontal ring is forced downward a distance of 1 in. (25.4 mm) under the weight of a steel ball as the sample is heated at a prescribed rate in a water or glycerol bath. Miyer) | |||
| температура размягчения по методу кольца и шара: 1 phrase in 1 subject |
| Weapons of mass destruction | 1 |