By analysis and experiment, a new type of noduler with high efficient and a new type of high mixed in-flow inoculant have been developed, and the as-cast production was made.
经过分析和试验，开发出一种新的高效球化剂和一种新的高效复合随流孕育剂，制定出铸态生产工艺。
In this paper, the theoretical study and experimental analysis for industrial muffler are conducted. The acoustic performance of the expansion muffler is acquired by analysis and experiment.
对某工业消声器进行了理论研究和实验分析，通过分析试验得到这类消声器的消声特性，指出在实际中，此类消声器声波不是严格按照一维平面波形式传播。
It is proved by analysis and experiment that the main harmonics is suppressed. The system has features of simple hardware circuit, good reliability, strong anti-interference ability and so on.
分析和实验表明，主要谐波得到抑制、系统可靠性好且抗干扰能力强。
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