运用蜡笔, 彩色铅笔, 油画棒等表现手法.

Crayon, color pencil, oil pastel and marker pens will be used in drawing.

罐入水并轻轻的用油画棒将结石从粪便中分离。粪便将通过网子漏下去。

Pour water gently and use the stick to separate the stones from the fecal material.