飞机设计师经常使用比例模型，并在案件的X - 36战斗机敏捷性研究无尾飞机，这是因为大的，因为它得到了。
Aircraft designers routinely use scale models, and in the case of the X-36 Tailless Fighter Agility Research Aircraft, that's as big as it got.
本论文主要研究无尾式无人机总体概念性设计方法。
The general conceptual design method of tailless Unmanned Aerial Vehicle (UAV) was researched in this paper.
蟾蜍各种无尾，主要是蟾蜍科两栖动物中的任何一种，与蛙类有亲缘关系，外表相近，但蟾蜍明显地更有陆地性，身体更宽更粗糙，皮肤更干燥。
Any of numerous tailless amphibians chiefly of the family Bufonidae, related to and resembling the frogs but characteristically more terrestrial and having a broader body and rougher, drier skin.
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