The body is built from balsa wood, and the wings powered by a wire crank driven by a rubber band.
燕尾蝶的身体是用轻木做的，而翅膀的动力来源为用橡皮圈驱动的金属曲柄。
It was he who folded aluminium, made ceramic sculpture in Japan, created delicate pieces in balsa wood.
是他对铝进行折叠处理，在日本制作陶瓷雕塑，用巴沙木制作精美物件。
Built from carbon fibres and balsa wood, Snowbird has a wing span of 32m (105 feet) - comparable to a Boeing 737.
雪鸟是由碳纤维和轻质木制成的，机翼长总32米(105英尺)，堪比波音737。
The children were asked to model an aeroplane out of balsa-wood.
孩子们被要求用轻木做模型飞机。
The children were asked to model an aeroplane out of balsa-wood.
孩子们被要求用轻木做模型飞机。
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