These questionnaires were based on a previously developed research instrument called the Free Will and Determinism Scale.
这些问卷基于从前使用过的被称作“自由意志及宿命论量表”的研究工具。
This instrument may be used to research and study on biological effects of RMF widely.
该仪器可广泛用于研究旋转磁场的生物效应。
Designing a research plan calls for decision on the data sources, research approaches, research instrument, sampling plan, and contact method.
设计调查计划时，要确定资料来源，调查手段，抽样方法和联系方法。
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