asymmetric double Vee groove

例句：

1. 1.The asymmetric double Vee groove design in this product is unique and practical.
   该产品中的非对称双V型槽设计独特且实用。
2. 2. The engineer used the asymmetric double Vee groove to improve the stability of the machine.
   工程师使用非对称双V型槽来提高机器的稳定性。
3. 3.The asymmetric double Vee groove was designed to reduce friction and increase efficiency.
   非对称双V型槽的设计旨在减少摩擦并提高效率。