The configuration also provides acoustic shielding and, at low speed, increases aircraft lift without a thrust or drag penalty.
该构造还提供声屏蔽，并且在低速下，增加飞机升力的同时没有推力或阻力损失。
The 1553b bus system has been widely used in aircraft, so it is necessary to analyze shielding effectiveness of the bus connectors to ensure electromagnetic compatibility of the whole system.
1553 B总线系统已广泛应用于飞行器中，为确保大系统的电磁兼容性，有必要开展总线连接器的屏蔽效能测试研究。
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