This provides a reliable theoretical accordance to improve the gun structure and its behavior.
从而为设计和改进喷枪结构，提高喷枪的性能提供了可靠的理论依据。
The operating characteristics were in accordance with the results of the theoretical calculations too.
粒子模拟的工作特性与理论计算的结果基本一致。
But an experimental science makes itself impossible when it delimits its field of work in accordance with theoretical concepts.
但当实验性的科学将它自己划定在与其理论概念相一致的范围内时，就是不可能的了。
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