本文主要说明长丝纱线弹性综合测定的原理和用长丝纱线弹性摩擦系数测试仪进行定延伸率重复测试的方法。
It is the intention of this paper to explain the basic principles of synthetic elastometry and the methods of repeated trials with the "Elastic Frictoinal Tester of Filament Yarn".
如何判明和消除重力仪格值系统误差对重力复测的影响是长期以来未能得到有效解决的问题。
How to distinguish the systematic error of gravimeter calibration and eliminate its influence upon the results of gravity reiteration is a problem which has not been solved for a long time.
对同批样品进行反复测试结果与结论：不同功率、 频率超声提取仪提取效果和对含量测定的结果不同。
RESULTS & CONCLUSION: The extraction effects were different in using ultrasonic extractors with different power levels and ultrasonic frequency.
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