prototype aircraft

The J-20 prototype designs displays a number of VLO design features, generally based on design rules developed for and employed in the construction of United States VLO combat aircraft.

歼20原型机的设计显示了一些VLO的设计特点，在常规设计规则的基础上进行开发，同时借鉴了美国VLO战斗机的制造工艺。

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Stability Analysis of Experimental AMB Prototype for Aircraft Engine

实验用航空发动机磁悬浮轴承样机的稳定性分析

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To prove it, the company has two fifth-scale test aircraft currently conducting test flights and--pending a round of Series B funding--will have a full-sized prototype in the air by spring or summer of next year.

为了论证这个问题，公司现在用两架五分之一大小的试验机进行试飞——同时推迟了B轮融资——到明年春季或夏季时才会让全尺寸机型上天。

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To prove it, the company has two fifth-scale test aircraft currently conducting test flights and pending a round of Series B funding will have a full-sized prototype in the air by spring or summer of next year.

为了论证这个问题，公司现在用两架五分之一大小的试验机进行试飞同时推迟了B轮融资到明年春季或夏季时才会让全尺寸机型上天。

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...the first prototype aircraft.

第一架飞机样机

《柯林斯高阶英汉双解学习词典》