Dr Stachewicz and Mr Ura propose instead to use a technique called electrospinning. This also involves a hollow needle.

斯塔切薇兹博士和尤拉先生提议使用一种叫做静电纺丝的技术，这也涉及空心针。

You get your finger pricked and then somebody directs you toward a lounge chair, swabs your inner elbow with alcohol, and then comes at you with a hollow needle.

你的手指被刺破，然后有人把你引向躺椅，用酒精擦拭你的肘部内侧，然后拿着空心针向你走来。

In a thoracentesis, a hollow needle to drain the fluid is carefully inserted over the top of a rib, to avoid injuring the neurovascular bundle running along the underside of each rib.

胸穿就是将一个空心针小心地沿肋骨上缘插入，这样是为了避免损伤沿每个肋骨下缘走行的神经血管丛。

This involves melting the polymer and pushing the resulting liquid through a hollow needle, out of a hole in the needle's tip and onto a spinning drum, where it cools and solidifies.

其中包括熔化聚合物，将产生的液体通过一根空心的针，从针尖的洞里出来，放到旋转的圆筒上，在那里冷却并凝固。

Essentially a syringe-arrow, tranquilizer darts have a hollow needle on their ends to pierce the skin of the target, at which time another mechanism kicks in to inject the tranquilizing liquid.

镇静剂飞镖本质上是一个注射器箭头， 其末端有一个空心针， 可以刺穿目标的皮肤，此时另一个机制启动， 注入镇静液体。