| 释义 |
perturbative, a.|pəˈtɜːbətɪv, ˈpɜːtɜːbeɪtɪv|
[ad. late L. perturbātīv-us, f. ppl. stem. of perturbāre to perturb: see -ive.]
Causing or apt to cause perturbation or disturbance. perturbative function (Astron.), a function expressing the potential of the attractions which cause perturbation in the motion of a planet: see perturbation 2 b.
1638Gen. Demands conc. Covenant 7 All such bands are declared to be seditious, and perturbative of the publick peace. 1823Ann. Reg. 176 Journals edited in a manner not less dangerous and perturbative. 1833Herschel Astron. xi. 321 The perturbative effect in this case..is equal to the whole attraction of the moon on the earth. 1881Nature XXV. 72 Development of the principal part of the perturbative function. 1971Ann. Physics LXIV. 383 The change in the initial set of site amplitudes is sufficiently small so that a perturbative solution of the set of equation[s] remains valid. 1973Physics Bull. Dec. 734 A perturbative approach to the valence charge density in tetrahedrally bonded semiconductors.
Hence ˈperturbatively (or perturˈbatively) adv.
1977Nature 21 July 205/2 Since α is about 1/127, things may be calculated perturbatively. |