1. The principle and parameters of circinate antenna are described and two application examples are explained in this paper.
本支叙述了环形天线的机理及特性参数，并给出两种应用实例。
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2. Common thorny tropical American tree having terminal racemes of yellow flowers followed by sickle-shaped or circinate edible pods and yielding good timber and a yellow dye and mucilaginous gum.
热带美洲的一种普通带刺乔木，黄色花，总状花序，镰刀状可食荚果，可产生优良木材，黄色染料和粘性胶。
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3. Common thorny tropical American tree having terminal racemes of yellow flowers followed by sickle-shaped or circinate edible pods and yielding good timber and a yellow dye and mucilaginous gum.
