Abnormal sound of chafing was heard from the crane during running test.

起重机在运转试验中，发现有不正常的磨擦声响。

youdao

This paper introduces the test results of abnormal engine valve sound on Model EQ6100 engine.

本文介绍了在EQ6100发动机上气门异响故障的试验研究。

youdao

This paper introduces the test results of abnormal engine valve sound on Model EQ6100 engine.

本文介绍了在EQ6100发动机上气门异响故障的试验研究。

youdao