给出了对时序险象研究特别有用的基本判定法则。
The basic laws which are particularly used to study sequential hazards are given.
给出二元函数型来定式的各种值法则，包括一阶极限判定法则和二阶极限判定法则。
This paper gives several determined value rules to type of indeterminate forms of functions of two variables. These contain the first order and the second order decision rules of the limit.
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