前人用
Used by predecessors
以上为机器翻译结果，长、整句建议使用 人工翻译 。
前人用“蟹爪纹”来形容，这里有二种说法。
Predecessors with "crab claw pattern" to describe, there are two kinds of argument.
youdao
史前人用打火石刀。
Prehistoric man used flint knives.
其计算结果和前人用理论计算方法得到的结果比较符合。
The obtained results agree satisfactorily with those deduced theoretically by other authors.
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