方法的三角交叉 ( methods triangulation ) ：使用教室观察与访问内容两 种不同方法进行检验；（二）资料三角交叉 (data triangulation) ：取用
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方法在颅耳沟处设计两个相对的三角形任意皮瓣，互相推进后交叉或对位缝合，加深颅耳沟，再造颅耳角。
Methods: Two triangular random skin flaps mastoid area were pushed into auriculocephalic sulcus and sutured tip - to - tip.
该定位系统采用波头计数与零交叉点检测的方法来提高超声测距精度，并通过三角形方法来实现三维定位。
This method enhanced the measuring accuracy by using the methods of wave head counting and zero-cross detection, and it implemented 3-d positioning with triangle square wave.
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