1. 冲洗管：washing needle 冲洗针 | washing pipe 冲洗管 | washing powder 洗衣粉
2. 冲管：washing fluid 冲洗液 | washing pipe 冲管 | washing 清洗;洗井
3. 清液管：2 indicator dial指示盘 | 3 washing pipe清液管 | 4 automatic sludge discharge pipe 自动排污管
1. He insisted on first using a pipe to extract semen from the panda's urinary bladder and then washing urine off the sample.