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通过理论推导及实验证明,在不使用引伸计的情况下测得较高精确度的Rp0.2值,这样,可降低长时间使用引伸计带来的维护、更新费用。
Through theoretical deduction and experimental proof, we can measure Rp0.2 with higher accuracy without using extensometer, which can reduce the maintenance and renewal costs caused by prolonged use of extensometer.