Although most parameters design of the machine are confirmed by analogy methods presently, a flux rate and strength theories are the restriction conditions that they should satisfied.
虽然目前双螺杆磨浆机设计的大部分参数需要采用类比法确定，但流量和强度条件是其应当满足的约束条件。
In practicing of blasting , Engineer of blasting design the scheme and parameter of blasting by the personal experience , project analogy and testing on analogical spot at present.
目前，在爆破工程实践中，爆破工程技术人员通常凭借个人经验、工程类比或者在相似地段进行爆破试验，来决定爆破开挖方案，进行爆破孔网参数设计。
The optimization model of the HGA in this paper can avoids soil nailing material waste caused by the engineering analogy and experience design, provides a theoretical basis to engineers.
本文的分层遗传算法优化模型能避免由工程类比及经验设计所带来的土钉材料浪费问题，给工程设计人员提供了理论参考依据。
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