[] () ( acˈtivity ˌsampling) a technique of watching the activities of a group of people or machines in a workplace at particular moments over a period of time, in order to calculate how much time is spent on each activity工作抽样（观察一段时间中某些时刻人群或机器在工作场所的活动，以便计算花在每项活动上的时间）◆Work sampling provides a measure of employee efficiency by showing what proportion of the time is spent working.工作抽样通过显示用于工作上的时间比例，从而提供了衡量员工效率的方法。 () a method of finding out if a candidate for a job has the necessary skills and abilities by asking them to do a task that is an important part of the job or by looking at examples of work that they have already done工作取样（测试求职者实际执行某项工作任务的技能）