| 摘要 |
A flying insect deterring screen composed of flexible tapes or strips suspended over an entry to a closed environment, wherein fluctuation throughout the length of the tapes is initiated by a prime mover acting at the points of suspension thereof. The prime mover initiates various types of fluctuating movement at the suspension points such as reciprocatory, oscillatory, circular and swirling motion, which motion is transmitted in waves to the lower end portions of the tapes.
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