The pepper was actually produced by the Indian military and used in a
poisonous spray capable of burning people's eyes. Since then, even spicier
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peppers have been developed.
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请问一下，划线部份我可以怎么翻呢?!

现在已有更强的防狼喷雾被发展出来一开始印度军版>时间推移>现在又有更厉害的版本