their directions can be read to within 5° from a circular scale attached to the strain gauge. 其方向可以在应变计的圆形刻度尺上读出,读数误差约在5内。
2.
< uk > their directions can be read to within 5 from a circular scale attached to the strain gauge . < / uk > < uk >其方向可以在应变计的圆形刻度尺上读出,读数误差约在5内。 < / uk >