建议工程技术人员在进行工程规划、设计和施工中既要考虑地质条件的制约因素，更要注意保护地质环境。
Therefore, geologic conditions and environmental protection must be concerned simultaneously at the time of planning, designing and construction of a project.
采用双层规划模型描述弹性需求条件下的连续平衡网络设计问题，设计了近似解的启发式算法。
A bilevel programming model and heuristic solution algorithm is proposed to model the continuous equilibrium network design problem with elastic demand.
运用机会约束规划方法，研究随机需求条件下公交运营设计的优化问题。
The comprehensive optimization problem of transit operations with stochastic OD demands is studied by using a chance-constrained programming method.
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