Filter is a key unit of adjacent frequency channel synthesizer and coupling problem is a key point in the design of a filter.
滤波器是邻频频道合成器的关键部件之一，而耦合问题又是滤波器设计的关键。
This design is widely used for multiple container systems where there is sufficient space to locate the heating unit adjacent to the containers.
这种设计广泛用于多容器系统。在该系统内有足够的空间来在容器附近放置加热器。
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