例如，top-down解析器可以确保找到每一个可能的产品，但可能会非常慢，因为要频繁地（指数级）进行回溯。
For example, top-down parsers are guaranteed to find every possible production, but can be extremely slow because of frequence (exponention order) backtracking.
Packrat解析解决了诸如指数级解析时间的问题。
Packrat parsing solves the problem of this kind of parser, i.e. exponential parse time.
刚性飞片在炸药爆炸作用下的一维抛掷问题，仅当爆炸气体多方指数等于三时可以求得解析解；
The one-dimensional problem of the motion of the rigid plate under explosive attack has an analytic solution only when the polytropic index of detonation product equals to three.
对具有任意的自相似指数的轴对称动力学问题进行自相似求解，导出解析解的一般表示。
Axisymmetric dynamics problems with arbitrary index of self-similarity are solved by the ways of self-similarity, and the general representations of the analytical solutions are deduced.
本文通过对油膜压力进行二阶泰勒级数展开得到油膜摄动压力方程组，采用指数膜假定求解油膜摄动压力方程组，得到推力轴承油膜刚度和阻尼的解析表达式。
In this article, author derives oil film perturbed pressure equation through expanding pressure using a Taylor Series. With exponential film assumption, analytical expression of OFSD is also derived.
采用解析木导向曲线法编制了辽东地区日本落叶松地位指数表。
Site index tables regarding Japanese larch in eastern Liaoning were mapped out by using stem analysis guide curve.
采用两层涡粘性模型和速度剖面的指数律导出机械能方程的耗散积分解析表示式。
An analytical expression of dissipation integral for kinetic energy integral equation is derived by two-layer eddy viscosity turbulence model and the power law of the velocity profile.
利用指数辐照理论的解析解研究了AGB星S过程元素的丰度分布规律。
Using the solution of S process chain with an exponential neutron irradiation the S process abundance distribution of AGB stars of different metallicities is investigated.
本文对电磁场问题的理论计算中常遇到的含有指数函数和指数积分函数的积分，得出了解析表达式。
The analytical expressions are derived for the integrals containing exponential and exponential integral which appear frequently in electromagnetic field problems.
从无标度网络指数式演化的角度，给出了BA修改模型的解析结果和数值模拟。
Started from exponential growth of scale-free network, the analytic and simulated results of the modified BA model are presented in the paper.
得到了幂律指数介于2到3之间可调的无标度网络模型，并解析地给出了幂律指数随增长率变化的函数关系。
This network shows scale-free property when the growing rater is not large, and its power-law exponent is tunable from 2 to 3 thr.
得到了幂律指数介于2到3之间可调的无标度网络模型，并解析地给出了幂律指数随增长率变化的函数关系。
This network shows scale-free property when the growing rater is not large, and its power-law exponent is tunable from 2 to 3 thr.
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