大小 ( 直径 ) 的变化包括图象的扩大.The variations of size ( diameter ) consist of a blowing - up of the images.一般来说, 最小器件图形大约是电子束直径的4倍.As a rule of thumb , the minimum device feature is about 4 times the beam diameter.更小直径的光纤能在探测器中使用 ...
这个洞眼的直径只有0.23英寸。This hole was a scant .23 inches in diameter.这个手绘盘子直径为30厘米。This hand-decorated plate measures 30cm across.树干的直径the diameter of a tree trunk...