viscous loss

例句：

1. 1.The viscous liquid flowed slowly through the narrow channel.
   这黏稠的液体缓慢地流过狭窄的通道。
2. 2.The viscous material was difficult to work with and required special equipment.
   这种黏稠的材料难以加工，需要特殊的设备。
3. 3.The viscous fluid had a tendency to stick to surfaces and was not easily removed.
   这种黏稠的流体有粘附表面的趋势，不容易被清除。