长期性;非周期性: secular长期性变化: secular change长期性故障: chronic troubles长期性能: long-term behaviour; long-term performance长期性倾销: long term dumping长期性缺陷: defect chronic长期性失业: chronic unemployment长期性自卑: chronic low self esteem长期性的故障: chronic troubles长期性的融资工具: permanent funding vehicles长期性浮游生物: permanent plankton; permanently plankton长期性人力需求: long term manpower demand长期性通货膨胀: secular inflation长期性重力变化: secular gravity variation长期性和深层次矛盾: longstanding and deep-seated problems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普通混凝土长期性能和耐久性能试验方法: standard for test methods of long-term performance and durability of ordinary concrete定期性: periodicity; punctuality短期性: short-term同期性: nbsp; synchronism预期性: anticipation周期性: periodicity; cyclicity 疟疾周期性发作 periodic attacks of malaria; 危机的周期性 the periodicity of crises; 景气状况周期性地出现。 booms run in cycle.; 周期性经济危机 periodic economic crises; cyclical economic crises; 周期性失业 cyclical unemployment 州期性: periodicity长期的: chroic; extended; le chronic; long dated; long standing; long term; long-dated; long-lived adj; long-period; long-range; long-run; long-standing adjective; long-term; longtime; perennial; secular; timeless长期行为: long time behavior; long-run behavior; long-term action; long-term behavior长期刑囚犯: longtimer