open by plane
飞机开启
以上为机器翻译结果，长、整句建议使用 人工翻译 。
An open curve formed by a plane that cuts the base of a right circular cone.
一个平面与正圆锥体的底部相交而形成的不闭合的曲线。
youdao
On 28 January, commercial flights were delayed by nearly three hours while a plane that had been left open overnight was searched by police and technicians.
BBC: Guernsey Airport security altered after alert
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