Time sampling Behavior may be missed if random time samples are not taken across the day.
时间取样：如果没有在全天采取随机时间取样的话，一些行为可能会被错过。
Time sampling Behavior may be missed if random time samples are not taken across the day.
如果没有在全天采取随机时间取样的话，一些行为可能会被错过。
The basic laws of reproductive behavior and the relation between them and environment of Henry chestnut have been studied through sampling investigations and tracing studies.
本研究具体通过抽样调查、跟踪研究等方法系统研究了锥栗生殖行为的基本规律及其与环境因子之间的关系。
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