This paper introduces the Handan Co generation Power plant, intermediate pressure rotor's last stage-blade frequency reach dangerous resonancearea when 200mw units were overhauled.
介绍了邯郸热电厂2 0 0 MW机组大修中，中压转子末级叶片组频率落入危险的共振区。
2
Using functional magnetic resonance imaging (fMRI), the researchers were also able to measure the surface area of the primary visual cortex in each volunteer.
研究人可通过功能磁共振成像（FMRI）来测量每个志愿者脑部的初级视觉表皮层大小。
3
The contactless electrostatic resonance method to determine the cross sectional area of conductive and unconductive monofilament was introduced.