| 单词 | null cone |
| 释义 | > as lemmasnull cone null cone n. Physics = light cone n. at light n.1 Compounds 3. ΘΚΠ the world > matter > physics > relativity > space-time > [noun] > conical surface light cone1921 null cone1925 1925Null cone [see sense 2c]. 1968 T. C. Bradbury Theoret. Mech. xiii. 589 Events separated by null vectors can be joined by light signals; in fact, the light cone is frequently called the null cone. 1990 Proc. London Math. Soc. 60 296 z is called a non-zero null vector, and the set of vectors [formula] is called the null cone, and it is denoted by N. < 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。