plane form的用法和樣例：
例句
- A plane figure bounded by two radii and the included arc of a circle.
由兩個半徑和兩個半徑中間的弧所形成的一個平面形狀。 - This simplification does not place our analysis in jeopardy of being oversimplified, at least in terms of the plane shape of the dike complex.
這種簡化不會使我們的分析處於過於簡化的危險，至少採用岩脈組合的平面形狀不會這樣。
