It is also applied to holed figure, because it may be treated as some bounded, solid figures.
也可以适用于有孔的图形,因为有孔图形可以分解作为若干个封闭实心图形看待。
There are no solid figures on the number of deaths per day, but it is estimated to be in the hundreds.
每天死亡的人数并没有固定的数字,但是据估计每天有数百人。
The first six shapes are plane figures, and the last three shapes are solid figures. Today we'll learn about cuboids and cubes.
前面六个是平面图形,后面三个是立体图形。今天我们学习长方体、方体的认识。
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