利用电阻应变仪测定了高应力弹簧各有效圈上所受的力；
The force on available coils of the spring was measured by means of straingage.
针对深基坑开挖卸荷的实际应力状态，通过对常规应变控制式三轴仪的改造，设计了符合基坑开挖特点的三轴试验方法。
According to the realistic stress path of deep excavation, normal triaxial apparatus of strain control was transformed and triaxial test conforming to deep excavation characteristic was designed.
采用应变片来量测裂纹尖端的应力集中现象，利用电阻应变仪来读取应变与压力值。
Strain gauges are applied to measure the stress intensity around the crack tips. Strain and pressure are measured by electrical resistance strain gauges.
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