The various harmonics are in resonance in this cavity to different degrees.在口腔中,各种谐音的共鸣程度不同.It is made up of a superposition of harmonics.它的谱由一组线条组成.These are called spherical harmonics.这些叫做球谐函数....
最好的雕刻工具是锋利而柔韧的长刻刀。The best carving utensil is a long, sharp, flexible knife.刻刀可象绘图笔一样,固定在简易的刀架上.The cutter can be mounted like a pennib in a simple holder.卡萝尔又在捉摸着桌上那把雕刻刀了.Carol again studied the carving - knife on the t...