long-radius elbow

例句：

1. 1. The engineerdesigned the machine with a long-radiuselbow to reduce friction.
   工程师设计了这台机器，带有长半径肘部以减少摩擦。
2. 2. The car's steeringwheel has a long-radius elbow thatmakes turning easy.
   汽车的方向盘有一个长半径肘部，使得转向变得容易。
3. 3.The construction project had to make a long-radius elbow in the road to accommodatethe new bridge.
   这个建设项目不得不在道路中做一个长半径肘部来适应新桥。