Field hockey that is played informally with curved sticks and a ball, can, or similar object.
简化曲棍球戏：用弯曲的棍子，一个球，罐头或类似的器具进行的一种不正规的曲棍球游戏。
2
As a consequence of this angular velocity, the field of the relative air flow past the airplane is curved.
由于存在角速度，通过飞机的相对气流流场是弯曲的。
3
With the density of entropy of curved space-time, we have calculated black hole entropy directly, and avoided the difficulty of solving the field equation.