雪样管 snow tube ; snow sampler

玫瑰峰雪样管 Mount Rose snow sampler

采雪样设备 Equip-ment snow sampling

雪球抽样 snowball sampling ; snowballed sample

滚雪球抽样 snowball sampling

花样滑雪 freestyle skiing ; hotdog skiing ; hotdog

雪球式抽样 snowball sampling

雪取样器 snow sampler

雪试样 snow sample

积雪采样器 snow sampler