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This study is concentrated on the analysis of bird-strike resistance for a wing slat, through a numerical simulation by using commercial nonlinear finite element code PAM-CRASH.

本文以机翼前缘缝翼结构为研究对象,通过大型非线性有限元分析软件PAM-CRASH,开展了飞机结构的抗鸟撞仿真设计研究。

Short-legged flightless birds of cold southern esp.

寒冷的南部特别是南极地区的短腿并不能飞翔的鸟,蹼足、鳍状翼。

Induced drag occurs when the air flow separates from the surface of a wing, while friction drag is due to the friction between the air and bird moving through the air.

诱导拖动发生时,气流分离,从表面的一翼,而摩擦拖曳是由于摩擦之间的空气和鸟移动通过空气。

Adults have black crowns, reddish-brown faces and necks, dark reddish-brown underparts with fine streaks, and black wings.

成鸟有黑冠、面孔和脖子为红棕色,背部为黑暗的红棕色,腹部有细条纹,翼黑。

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I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。