在数学术语中，不完全确定的值称为随机变量。
In mathematical terms, values that are not known with complete certainty are called random variables.
因为Python并不完全支持局部变量，你不得不创造一种数据结构，来接受n的值。
Because Python doesn't fully support lexical variables, you have to create a data structure to hold the value of n.
运用不完全分离变量法的理论计算爆炸地震波在半空间内传播，得到地表质点响应的运动场。
The propagation of explosive seismic wave in half-space is calculated by applying incomplete separation variable method, so the movement fields of response of ground particles are received.
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