在分析这些岩芯时，他们发现冲击石英颗粒———带有特殊排列的微裂缝的薄片，科学家认为他们是外层空间来的物体与地球碰撞留下来的遗迹。
When they analyzed these rocks, they foundshockedquartz grains—slivers with a particular arrangement of micro cracks believed to represent the relic left by an extraterrestrial impact.
展望未来，Butt博士表示，今后大型孵化工厂的鸡蛋选育操作都会像他所设想的那样：鸡蛋由传送带运输，它们互相碰撞，直到鸡蛋较小的一头（尿囊处在较小的一头）都垂直朝上，之后这些鸡蛋便整齐的排列在一排针管之下。
In future, Dr Butt envisages, the egg-sorting operation of a large hatchery might look like this: A conveyor belt moves the eggs along, gently jostling them until their allantoic sacs point upright.
应用推荐