| 释义 |
〔speed〕The limit of this quotient as the time of travel becomes vanishingly small; the first derivative of distance with respect to time.瞬时速度:当运动时间小到可以忽略时,此商数的极值;距离相对于时间的一阶导函数〔negligible〕Not significant or important enough to be worth considering; trifling.可以忽略的:因不重大,不重要而不足以考虑的;微不足道的 |