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。
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。
In practice, however, some activities may be missed from national accounting, namely "non-observed economy".
但在实践中常常会有某些活动未被核算,成为“未观测经济”。
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