tapered tube rotameter 锥形管柱式旋转流量计

tapered-tube flow-meter 浮子式流量计

a small tapered tube 小锥度圆管

tapered tube flow meter 浮子式流量计

tapered glass tube 锥形玻璃管

tapered draft tube 锥形尾水管

tapered pulse tube 锥形脉管

tapered seed tube 锥形输种管

Tapered molybdenum tube 钼锥形筒

tapered thin-walled square tube 部分锥形薄壁方管