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- Estimating multi-parameters of multi-signals in broad-band isvery important, such as recognizing of unknown emitting sources, active canceling and so on. 在宽频段内多信号多参量联合估计已成为许多研究课题(例如，未知辐射源识别，有源对消等)的重要研究内容。
- Can you tell me the cancellation number? 能不能告诉我取消号码？
- Arrangements will be made for activities cancelled owing to inclement weather. 因天气关系取消的节目或活动,将另作安排。
- The orient has been playing an active role in the world economy. 亚洲一直在世界经济中发挥积极作用。
- He is an active member of the school's stamp club. 他是学校集邮俱乐部的一名活跃会员。
- An active volcano may explode at any time. 活火山随时都有可能爆发。
- Cancellation of an order or command. 收回成命; 撤消命令对定货或命令的取消
- Is it wise to engage in active sports at your age? 我这样的年纪积极参加体育活动是否明智？
- She was active as a left-winger in the party. 她是党内积极的左翼分子。
- He was very active and rode down several horses. 他劲头很大，一连骑了好几匹马。
- She plays an active part in local politics. 她积极参与地方政治活动。
- The steel market will continue to be active. 钢材市场将会继续保持活跃。
- Her cancellation of her trip to paris upset our plan. 她取消了巴黎之行打乱了我们的计划。
- An active volcano may erupt at any time. 活火山随时可能喷发。
- He was disabled when on active service. 他在战斗中受伤致残。
- Ms. Brown is active in the party. 布朗女士在晚会上很活跃。
- The active boy was extremely distractible. 那好动的男孩极不专心。
- His lame foot disqualified him for active work. 跛脚使他无法参加积极活动。
- He told me about the cancellation of the match. 他告诉了我关于比赛取消的消息。
- Pi state city grinds village fulgurite to stand the deploy according to the State Council and ranking bureau, the exploration that undertakes one class electrician works actively cancelling a village. 邳州市碾庄电管站按照国务院和上级局的部署，积极进行取消村一级电工工作的探索。
