คำว่า ' crucible ' ( N )
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คำนิยามในภาษาอังกฤษ (definition) :
[n.] A vessel or melting pot, composed of some very refractory substance, as clay, graphite, platinum, and used for melting and calcining substances which require a strong degree of heat, as metals, ores, etc.
[n.] A hollow place at the bottom of a furnace, to receive the melted metal.
[n.] A test of the most decisive kind; a severe trial; as, the crucible of affliction.