蚱蜢自行车是一种可折叠的电动自行车，它可以被折叠成手推车形，便于携带。复合材料的使用，保证了其硬度和强度。
Grasshopper is a foldable electric bicycle that turns into a trolley for easy transport. The use of composite materials provides rigidity and strength.
第一是使用碳复合材料制造的风机叶片(你在飞机上看到的最大叶片)，这种叶片远轻于当时金属制的叶片。
The first was to use carbon composites to make fan blades (the big ones you do see) far lighter than the metal ones of the time.
使用复合材料制造的飞机的一个优点是能够大大节省燃油消耗。
One advantage is that composite-based planes use significantly less fuel.
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