与其他子系统的优化工作不同，实际上在构建系统的体系结构设计阶段就应该开始进行磁盘 I/O 优化。
Unlike the tuning of other subsystems, tuning disk I/O should actually be started during the architectural phase of building your systems.
象perl这样灵活的语言，使除预编码阶段(需求收集与体系结构设计)之外的任何软件项目阶段的优化编码易于进行。
A language as flexible as Perl facilitates good coding in every stage of the software project, except the pre-coding stages (requirements gathering and architecture design).
然后采用最佳矢量法求解结构体系可靠度指标约束下的最小重量优化设计问题。
Secondly, the problem of the minimum weight design is resolved by using the optimum vector algorithm under the constraint of the structure system reliability.
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