内容包括：（1）用查表法进行除法、求平方根、求三角函数等复杂运算；
These techniques include: (1)Implementing division, square root, Logarithm operation and other complicate calculations by table-reading;
内容包括：（1）用查表法进行除法、求平方根、求三角函数等复杂运算；
These techniques include: (1)Implementing division, square root, Logarithm operation and other complicate calculations by table-reading;
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