偶然: accidental; fortuitous; casu ...事故: malfunction; trouble; fault; ...表: outside; surface; external偶然事故: contingence; contingent; fortuitous event事故,故障,偶然事件: accident事故;偶然事件;故障: accident偶然事故,偶然损伤。: accident偶然事故的损失: loss from accident偶然事故预防规划: contingency planning允许的偶然事故,应急费用: contingency allowance非偶然事件: noncontingent event偶然事件: accident; casus fortuitus; chance event; contingent event; fortuity; happenstance; incident; random events自然事故: natural accident降低偶然事件: international commission on reduction of risk of war through accident miscalculation and偶然事件反应计划: contingency response plan偶然事件结果冲程: event事故照射,偶然曝光,偶然曝射,偶然辐射: accidental exposure偶然误差, 意外误差, 事故误差: accident error事故辐射损伤,事故性曝射伤,偶然辐射伤害: accidental radiation injury偶然: accidental; fortuitous; casual; incidental; occasional; in case of accident; by coincidence; by chance; accidently; by accident; chance; chance to; have a chance to; happen to; it just so happened that ...: 偶然现象 accidental [fortuitous] phenomena; 偶然事件 accident; a chance event; 偶然原因 an occasional cause; 偶然遇见一个老朋友 run into an old acquaintance; meet an old friend by chance; come across an old friend; 偶然相识的人 an incidental acquaintance; 出现这种问题绝不是偶然的。 the occurrence of such things is by no means fortuitous. 我在伦敦一家小店里偶然发现那件古物。 i struck upon that antique in a little shop in london必然事件: certain event; sure event突然事件: emergency自然事件: natural event事故: malfunction; trouble; fault; failure; mistake; accident; mishap 造成事故 bring about an accident; 减少事故 cut down accident; 预防事故 provide against accidents; 交通事故 traffic accident; 一次事故使他双目失明。 his blindness is the result of an accident.; 事故保险 accident insurance; 事故调查 accident investigation; 事故防止 accident prevention; 事故分析 accident analysis; 事故监督 fault control; 事故预防 accident prevention; 事故自动刹车装置 deadman device; 事故自动停机手柄 deadman's handle(偶然)遇见;(偶然)发现: come across