| 单词 | termination shock |
| 释义 | > as lemmastermination shock termination shock n. chiefly Astronomy a shock wave occurring at the point at which a flow is slowed to subsonic speeds; spec. (in the solar system) the roughly spherical standing shock wave formed far beyond the orbit of Pluto where the solar wind encounters the interstellar medium and is slowed to subsonic speeds; the region of space occupied by this; cf. heliosheath n.The termination shock in the solar system is thought to be located typically around 90 astronomical units from the sun. ΚΠ 1975 Israel Jrnl. Technol. 13 157/1 It is difficult to gain more than a rough idea of the physical flowfield, the extent of the supersonic region and the severity of the termination shock. 1981 Papers 17th Internat. Cosmic Ray Conf. III. 463 A model of the anomalous cosmic ray component in which ex-interstellar ions are preferentially accelerated in the polar regions of the solar wind termination shock and then drift into the inner heliosphere. 2011 T. Koupelis In Quest of Solar Syst. vii. 182/2 Voyager 1 has already passed the termination shock; this is the region where the solar wind meets the interstellar gas, thus quickly slowing down, becoming denser and hotter. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。