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这就必须在波位驻留时间和平均增益损失等因素之间进行折衷。
It must be compromised among beam position standing time, mean gain loss and so on.
最后以条带模式星载相控阵sar系统的波位设计为例，验证了算法的可行性。
An example of beam position design for spaceborne strip map phased array SAR is given, which proves that this algorithm is valid.
四岁时，罗斯特罗波维奇和母亲索菲娅·尼古拉耶夫娜·费多托娃一起学习钢琴，索菲娅是一位才华横溢的钢琴家。
At the age of four, Rostropovich learned the piano with his mother, Sofiya Nikolaevna Fedotova, a talented pianist.
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