流线型流动，顺滑流
1. 层流：streamline 吝 | streamline flow 层流 | strength 强度
2. 流线流：streaming agent 喷射剂 | streamline flow 流线流 | street box 接上报警箱
3. 片流层流：streamline field 吝场 | streamline flow 片流层流 | streamline form 吝形
4. 流线状流动：streaming potential 流动电势 | streamline flow 流线状流动 | streamline molded form 流线形地形
noun
1. flow of a gas or liquid in which the velocity at any point is relatively steady