supernumerary

a pair of supernumerary teats.

一对多余的乳头。

supernumerary ornamentation;

多余的装饰；

books were obviously supernumerary, and he began jettisoning them.

书明显多余了，所以他开始向外扔书。

Methods X-ray dental film and panoramic pantomogram were used to determine the location of embedded supernumerary teeth on bases of the geometrical principle of X-xay photography.

方法通拍摄X线牙片及全景片,结合临床检查,利用X射线照相中的几何学原理确定多生牙的位置,以确定手术入路,拔除。