日落之后，寒意袭人，老人冷得发抖。当他剩下的鱼饵中有一块被咬住时，他就用自己那把带鞘的刀把钓丝给割断了。 。
The old man shivered in the cold that came after sunset. When something took one of his remaining baits, he cut the line with his sheath knife.
当离子在鞘层运动时，考虑离子与中性原子之间的电荷交换和弹性碰撞，以及离子被尘粒的库仑散射和收集作用。
The charge exchange and elastic collision between ion and neutral atoms and the collection and Coulomb scattering of ion on dust grains are considered.
当再入目标高超声速穿越大气层时，将产生等离子体鞘套和尾流，其雷达散射特性受到目标包覆等离子体参数变化的影响而产生剧烈波动。
While the reentry target passes through the earths atmosphere at ultrasonic speed, the RCS of the reentry Capsule changed violently because of the plasma sheath and wake.
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