在最近一天的一个早上，有一个组被分配站在走道中用汉语唱《雅克兄弟》；在教室中，另外一组用一个巨大的鼓模仿下雨的声音（外面也确实正在下雨）。
On a recent morning, one group was stationed in the hallway singing “Frère Jacques” in Mandarin; in a classroom, another group was imitating the sound of rain on a giant drum (it was pouring outside).
他又用麋鹿的皮蒙在土缶上作成鼓敲打起来，还重击轻打石刀石斧，模仿天帝玉磬的声音。
He put deer skin on the fou (an earthen pot with a big body and a small mouth) to make a drum, and imitated the God's jade qing by beating stone knives and axes heavily or lightly.
该系统改变了传统机械靠模仿形加工方法，能满足不同鼓度曲线变化的需要。
It can re - place traditional mechanical profile modelling manufacture method, and can fit different profile of crown gears.
该系统改变了传统机械靠模仿形加工方法，能满足不同鼓度曲线变化的需要。
It can re - place traditional mechanical profile modelling manufacture method, and can fit different profile of crown gears.
应用推荐