| 摘要 |
PROBLEM TO BE SOLVED: To provide a mild animal-repulsing machine which can efficiently protect crops from wild animals. SOLUTION: When a wild animal is detected with an infrared light sensor 6 on a Nichrome wire 9 for igniting the percussion cap 8 of a firecracker 7, this mild animal-repulsing machine energizes the Nichrome wire 9 to ignite the percussion cap 8, thereby capable of blasting the firecracker 7 to repulse the wild animal.
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