Microchannel

例句：

1. 1. Microchannels are used in microfluidic devices to control the flow of liquids.
   在微流控设备中，微通道用于控制液体的流动。
2. 2. The researcher developed a new method to detect microchannels in biological samples.
   研究者开发了一种新方法来检测生物样本中的微通道。
3. 3. The invention of microchannels has greatly improved the efficiency of drug delivery systems.
   微通道的发明大大提高了药物输送系统的效率。