active loop closure constraint 主动环形闭合约束
Active Loop Antenna 环形天线
active loop filter 有源环路滤波器
active loop heat pipe alhp 主动式环路热管
active DO-loop 现用DO循环 ; 现行现用DO循环
active voltage close loop control 有功电压闭环控制
active fiber loop replicator 有源光纤环脉冲复制器
Close loop active correction 闭环主动校正
Along with the western coast of North and South America, Central America lies on the Ring of Fire, a seismically active loop that encircles the Pacific Ocean.
沿着北美和南美的西部海岸，中美洲位于环绕太平洋地震活跃圈的火山带上。
This paper gives the design and experimental results of low noise NPLL frequency synthesizer and concludes that the passive loop filter is more suitable for low noise design than active loop filter.
介绍低相噪NPLL 频率综合器的设计及实验结果。提出用无源环路滤波器比用有源环路滤波器更好，可获得低相噪设计。
The second loop iterates through all relationships in the Active Record model and renders the appropriate partial for each relationship.
第二个循环在活动目录模型中的所有关系上迭代，并呈现每个关系的适当部分。
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