The disc harbours the Sun and most of the galaxy's other stars, as well as the beautiful spiral arms.
主盘包含着太阳及星系里其他大部分的恒星，当然还有美丽的旋臂。
2
The discs emit energetic spirals. They are truly more spiral than disc, but they do appear disc- like when viewed.
这些圆碟会发射出能量的光旋，它们其实不是圆碟状而是螺旋形的，但看起来外像是圆碟一样。
3
The general situation, application features and technological and economic aspects of a new drying equipment composed of a double spiral dryer and a disc dryer are described.