normal viscosity

例句：

1. 1. The oil has a normal viscosity that makes it suitable for use in many applications.
   这种油具有正常的粘度，适用于许多应用。
2. 2.The water's normal viscosity is important for its ability to flow smoothly.
   水的正常粘度对其流畅流动的能力至关重要。
3. 3.The paint was applied with a brush, which had a normal viscosity that would not drip or run.
   油漆是用刷子涂抹的，其粘度适中，不会滴落或流淌。