The contrast agent was administrated through the ear venous with high-pressure syringe.

使用高压注射器由耳缘静脉注入对比剂。

youdao

Gently pull upward to straighten the ear canal. Use a syringe device to gently direct water against the wall of the ear canal.

轻轻地将耳廓向上拉直，使用注射器直接向耳孔壁注水。

youdao

Check the tightness of the system by slightly turn the syringe (4), the ear pressure curve should increase by some millimetres and then stabilize.

稍微转动注射器(4)，检查系统的严密性，耳压曲线应增加几毫米、然后稳定下来。

youdao

Use a syringe device to gently direct water against the wall of the ear canal.

VOA: special.2010.03.31

At Colchester Zoo, staff stroked Otto the rhino's ear, simultaneously calming the patient, bringing up a vein and slipping in a small syringe.

BBC: Rhino horn DNA database introduced