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microphone calibration
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microphone calibration
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电声计量
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microphone calibration
传声器校准技术
为确保传声器的性能指标和测量的准确度,而对其进行定期校准的技术。又称麦克风校准技术。
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graded index lens, GRIN
graded index media
graded-index media
=graded index 陡度折射率
graded junction
graded lattice
graded Lie algebra
graded manifold
graded medical treatment
graded module
graded morphism
graded object
graded pn junction
graded-polarizable
graded projective dimension
graded protection of wild plants
graded [refractive] index
graded refractive index
graded ring
graded R nodule
graded R-nodule
graded sheaf
graded space
graded submodule
Graded Supplementary Readings for Primary School Students
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