Tests on monkeys, including ones in which the animals' eyes were held open to check that the beam does not blind, suggest it causes no permanent damage.

参加实验的实验猴受到攻击后经检查并没有致盲，表明该武器不会造成永久伤害。

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Tests on monkeys, including ones in which the animals' eyes were held open to check that the beam does not blind, suggest it causes no permanent damage.

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