Electrical resonant method is used in crankshaft fatigue testing of an air compressionmachine.
采用电动谐振法对空压机曲轴进行疲劳试验。
2
Triaxial creep tests on coal rocks are carried out by Step Method and the XTR01 electric-fluid servo compressionmachine.
使用XTR01型微机控制电液伺服试验机，采用梯级加载法，对煤岩进行了三轴蠕变试验。
3
Gravure printing machine, a flat pressure-type hand gravure machine, gravure platform round compressionmachine, rotary type of intaglio printing machines.