第一部分是一个球茎状（图片显示鼓状）的圆筒，做好印记，修整并。
The first is a bulbous cylinder that is marked, altered and sprigged.
由此，在背投式图像显示装置(1)中可以实现基于远程操作的枕形失真、鼓形失真和不等腰梯形失真的校正。
This allows pin distortion and barrel distortion, as well as trapezial distortion to be corrected by remote control in the back-projection image display device (1).
制动器零件的萨克斯鼓显示为红色。
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