该飞机的两个机翼因受到撞击而脱落。
迄今尚不知该撞击是否是由于一起事故。
As yet it is not known whether the crash was the result of an accident.
汽车若遇到正面猛烈撞击，安全气囊可以保护驾车者。
Airbags protect the driver in the event of a severe frontal impact.
赛跑者的每一步都以5倍于他们体重的力量撞击地面。
With every stride, runners hit the ground with up to five times their body-weight.
这些撞击会持续对地球上的生命构成自然威胁。
Such impacts continue to pose a natural hazard to life on Earth.
铁锹撞击到坚硬的东西，他的脊梁骨一阵颤动。
The spade strikes something hard, sending a shudder through his spine.
他们用一块石头撞击另一块石头来制造这些工具。
一些科学家假定，小行星撞击地球导致了恐龙的灭绝。
Some scientists hypothesize that the extinction of the dinosaurs resulted from the effects of an asteroid collision with Earth.
爆炸性的撞击使冰加热并液化，导致喷出物呈流体状。
Explosive impacts heated and liquefied the ice, resulting in the fluid appearance of the ejecta.
当碎片落回撞击坑时，热量可以被保留下来，形成隔热层。
Heat could be retained as debris fall back into impact craters, creating an insulating blanket.
地质学家们在知道撞击发生的地点之前就知道撞击发生过。
Geologists knew that there had been an impact before they knew where it had occurred.
科学家将白垩纪末期的大灭绝与地球上的陨石撞击联系起来。
Scientists have linked the mass extinction at the end of the Cretaceous with a meteorite impact on Earth.
在这种碰撞中，撞击者被完全摧毁，其物质被并入较大的天体中。
In such collisions, the impactor is completely destroyed and its material is incorporated into the larger body.
我们认为，撞击月球的流星或经过的彗星尾巴可能会留下一些水分子。
We think meteors that crashed into the moon or tails of passing comets may have introduced water molecules.
地球和火星大小的撞击物发生如此巨大的碰撞，可能导致了月球的形成。
Such a titanic collision between Earth and a Mars-size impactor may have given rise to Earth's Moon.
根据“巨型撞击假说”，月球是在地球和一个火星大小的物体相撞时形成的。
According to the giant-impact hypothesis, the Moon was created during a collision between Earth and a large object about the size of Mars.
越来越多的证据表明，陨石的撞击对地球产生了重要的影响，特别是在生物进化领域。
There is increasing evidence that the impacts of meteorites have had important effects on Earth, particularly in the field of biological evolution.
陨石的撞击对某些物种是有利的，它们会茁壮成长；而对其他物种则是灾难性的，它们会灭绝。
Meteorite impacts can be advantageous for some species, which thrive, and disastrous for other species, which become extinct.
火星表面显示出广泛的地质特征，包括巨大的火山——太阳系中已知的最大的火山——和广阔的撞击坑。
The surface of Mars shows a wide range of geologic features, including huge volcanoes—the largest known in the solar system—and extensive impact cratering.
怀疑派认为，一次撞击只会使小行星的整体温度上升很小，而且小行星在两次撞击之间会迅速冷却，从而无法积聚大量热量。
Skeptics have argued that a single impact would raise an asteroid's overall temperature very little and that asteroids would cool too quickly between impacts to accumulate much heat.
海浪撞击着港湾的坝堤。
我感到了一下轻轻的撞击，立刻就明白发生了什么。
I felt a little bump and I knew instantly what had happened.
撞击多孔体产生的碎片较少，因此产生热量的能量更多。
Impacts on porous bodies generate less debris, so more energy goes into producing heat.
尤卡坦半岛上富含铱的沉积层和一个巨大的陨石坑提供了证据，证明了约6500万年前，一颗大型陨石撞击了地球。
An iridium-enriched sediment layer and a large impact crater in the Yucatn provide evidence that a large meteorite struck Earth about 65 million years ago.
大量的抛射物撞击更大的天体，形成各种各样的陨石坑，包括“多环盆地”——在行星和卫星上观察到的最大的地质特征。
Massive projectiles striking much larger bodies create various kinds of craters, including "multi-ring basins"—the largest geologic features observed on planets and moons.
巨大的抛射物撞击更大的天体，创造了各种各样的陨石坑，包括多环盆地——这是在行星和卫星上观察到的最大的地质特征。
Massive projectiles striking much larger bodies create various kinds of craters, including multi-ring basins—the largest geologic features observed on planets and moons.
巨大的抛射物撞击更大的天体，创造了各种各样的陨石坑，包括多环盆地——这是在行星和卫星上观察到的最大的地质特征。
Massive projectiles striking much larger bodies create various kinds of craters, including multi-ring basins—the largest geologic features observed on planets and moons.
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