粱的上、下表面的4#、5#电阻应变片的翻译：Beam upper and lower surfaces of the 4#, the 5# resistance strain gages 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Under the surface of the beam of 4 #, 5 # resistance strain gages

Beam upper and lower surfaces of the 4#, the 5# resistance strain gages

Liang's on, undersurface 4#, 5# resistance strain gauge

Helsinki, the surface of the 4 #, 5 #resistance response,

Beam upper and lower surfaces of the 4#, the 5# resistance strain gages