sampleboxn.样本框samplen.样品；样本vt.采样；取样；品尝，体验sampled data control抽样数据控制sample time aperture抽样时间截口sample set shrinking样本集缩减sample-plot survey样地调查sample concentration试样浓缩Sample-preparation制样sample decomposition样品分解sample and detection检测sample adding method试样加入法sample-plot design标准地设计