利用力敏传感器测量物体的密度，改进了传统的实验方法和仪器，实现了非电量电测，提高了实验的准确度和稳定性。
Using force sensor to measure density of objects can improve the accuracy and stability of the experiment as the result of bettering the traditional experimental methods and instruments.
用理论和实验方法研究了柱轴向非均匀性对保留时间的影响。
The influence of column irregularity along column axis on retention time is studied theoretically and experimentally.
建立了非水相毛细管电泳分离蒽醌类化合物的实验方法。
A method for the separation of anthraquinone compounds based on nonaqueous capillary electrophoresis has been developed.
设计了基于虚拟仪器的实验项目，以完成非正弦周期电路章节的实践教学，并介绍了实验项目设计方法、实验内容和实验方。
This paper introduces the realization of experiments in nonsinusoidal periodic circuits which are difficult to be understanded by students and examined by experiments with equipments.
他们提出“3R原则”，即减少动物使用量（replacetestingonanimals）、改善试验方法以减轻动物痛苦（refine their experimentsto minimise distress）和用非活体动物实验替代动物实验（replace testing on animals with alternativetechniques）。
They wanted scientists to restrict the use of animals, to refine their experiments to minimise distress and to replace testing on animals with alternative techniques.
他们提出“3R原则”，即减少动物使用量（replacetestingonanimals）、改善试验方法以减轻动物痛苦（refine their experimentsto minimise distress）和用非活体动物实验替代动物实验（replace testing on animals with alternativetechniques）。
They wanted scientists to restrict the use of animals, to refine their experiments to minimise distress and to replace testing on animals with alternative techniques.
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