swallowtail joint; devetailjoint

The design and manufacturing of swallow-tail way grinding machine;

燕尾导轨磨削机床的设计制造

Repairment of crack in dovetail keyway of C_(13-1) type 1 t double columns steam hammer head;

C_(13-1)型1t双柱汽锤头燕尾开裂的修理

The results indicate that flashover in building fires is in essence a phenomenon of swallowtail catastrophe.

结果发现建筑火灾中轰燃现象的突变形式是燕尾突变。

A catastrophe potential function,which has the same form of swallowtail catastrophe,was obtained by dimensional normalization and diffeomorphism.

基于能量平衡方程建立了热烟气层轰燃模型,经量纲归一化和微分同胚变换,得到属于燕尾突变的势函数。