价格同晶片大小成正比。
晶片的大小以边长表示，大晶片LED的品质比小晶片的要好。价格同晶片大小成正比。
The size of the wafer to wafer side said, the quality of LED is better than small chip. The price is proportional to the size of isomorphous.
这个新设备是一张纸牌大小的硅晶片。
The new device is a silicon wafer about the shape and size of a playing card.
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