Meiners H, Schult W
Dtsch Zahnarztl Z. 1978 Jul;33(7):489-91.
Protracting the separation of wax model and work stump in order to overcome the inner tension in the wax at room temperature is not a dependable measure for preventing shrinkage of the cast.
延长蜡型与工作残端的分离时间以克服室温下蜡的内部张力,并非防止铸件收缩的可靠措施。