长期: over a long period of time; ...摄动: perturbation; disturbance短周期摄动: shortperiodperturbation周期摄动: periodic perturbations摄动: [天文学] perturbation; disturbance成虫期摄食: adult feeding短周期摄影: short period perturbation奇摄动: singular perturbation扰动,摄动: perturabance摄动法: method of perturbation; perturbation method; perturbation technique摄动阶: order of perturbation摄动解: perturbed solution摄动力: disturbing force; perturbing force摄动体: disturbed body; disturbing body; perturbing body摄动项: perturbing term摄动组: perturbed system总摄动: general perturbation长期: over a long period of time; long-term; long range; secular 作长期打算 take a long view; make long-term plans; 长期观点 a long-term view; 长期存在的问题 a long-standing problem; 这个实验结果长期不显著。 the result of this experiment was not noticeable for a long period.; 长期保险 long term insurance; 长期产品脱销 chronic shortage of some products; 长期储藏 standing storage; 长期储蓄 permanent saving; 长期存款 long-term deposits; 长期贷款 long-term loan; 长期订单 standing order; 长期负债(借款) funded debt;funded liabilities; 长期国策 long-term national policy; 长期居留证 long-term residence permit; 长期徘徊不前 protracted stagnation; 长期失业 chronic unemployment; 长期投资 permanent investment; 长期债券 long-term bonds; 长期债券利率 long rate; 长期债权 long-term claims; 长期债务 funded debt; 长期债务还本付息 payment on long-term debt; 长期资产 long-term assets; funded property;long-lived assets; 长期准许证 standing permit多日期摄影图象: multidate image多日期摄影相片: multidate photograph潮汐摄动: tidal perturbation; tidalperturbation初始摄动: initial perturbation二阶摄动: second order perturbation非奇异摄动: nonsingular perturbation附加摄动: additional perturbation