... 标准测试（磁）带 standard recording tape 标准测试信号 standard measuring signal 标准测温熔锥 orton cone ...
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Measuring apparatus can use general digital voltmeter with appropriate accuracy, but generating standard dynamic strain signal is a problem which hasn't been well solved.
测量仪器可用适当精度的通用数字电压表，而标准动态应变的产生则是尚未很好解决的问题。
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